Friday, July 31, 2020

Bottesini - Concerto For Double Bass No. 2 In B Minor

Giovanni Bottesini began his life in Crema, Lombardy and his first instruction in music came from his father who was an accomplished clarinettist and composer. Bottesini studied violin and most likely would have stayed with this instrument, but because of a lack of money his father had to try and get him a scholarship to attend the Milan Conservatory. There were but two instrument positions opening, for a bassoon or double bass.  The young Bottesini chose the double bass, and within weeks played it well enough to be admitted to the conservatory.

After 4 years of study, he became a traveling double bass virtuoso. His playing was so masterful, he earned the title of The Paganini Of The Double Bass. He spent time in America, and was a member of an orchestra in Havana. Cuba for a time. He was very popular in London and made many trips there.

He composed and conducted as well as performed on the double bass, with some of his operas having success in Europe. He conducted an opera company in Paris from 1855-1857, and sometimes during intermission he would bring his double bass on stage and play paraphrases and variations on themes from the opera he was conducting  that night. Performing high pitched notes on the double bass requires some major body bending, which led to Bottesini caricatures being published, but it was all part of his popularity as being one of the virtuoso double bass players of the Romantic era.

The 2nd concerto for double bass, along with some of his other works, take double bass technique to dizzying heights.  He also was one of the first double bassists to use the French style, or overhand grip for the bow.

The 2nd concerto for double bass exists in many versions besides the original in B minor for orchestra. There are versions for string orchestra and double bass, versions in C minor, and versions for piano and double bass, with many of the transcriptions done by Bottesini himself.

The Concerto For Double Bass No. 2 In B Minor is in 3 movements:

I. Allegro - The video below is of the version for string orchestra and soloist. The strings play  a short introduction, which I haven't been able to find on any of the versions of the sheet music online. But there are many versions, and in any event it suits the concerto well. When the soloist enters with the main motive, it sounds more like a cello than a double bass. The music stays pretty much in the high register of the instrument with a few dips into the depths of double bass tone for contrast. It takes strong fingers to be able to press down on the much thicker and heavier strings of the double bass, as well as having a strong back to bend over the instrument to reach the higher end of the fingerboard. Every technique from double stops, to harmonics, to rapid runs are used, but all to serve what Bottesini instructs the performer at the very beginning of the piece - expressivo. Bottesini wrote the fiendishly difficult cadenza, but some modern performers have created their own to showcase their virtuosity.

II. Andante -  A subdued accompaniment helps the soloist show how the somewhat ungainly double bass can sing when a musician knows how to coax it.

III. Allegro - The finale rounds out the concerto with more virtuosity for the soloist, with another opportunity for a cadenza if the soloist chooses.

I wanted to include a video performance of the concerto, which is below. The performer is Edgar Mayer, perhaps the leading double bass virtuoso of this era. I wonder, being hunched over so much, if his back is a problem for him?



Tuesday, May 12, 2020

Prokofiev - Piano Concerto No. 3

 Prokofiev wrote a set of variations for piano in 1913, and over the years continued to expand on it until it took form as his 3rd piano concerto in 1921. The work is now one of Prokofiev’s most popular, but that wasn’t the case after its premiere. It took a few years for the concerto to develop in popularity until it became one of the mainstays of piano concerto literature in general, and one of the best concertos of the 20th century.

I. Andante - Allegro - The work begins with a soft rendition of a theme, first by a solo clarinet that is joined by another. The orchestra takes up the theme, but briskly whisks it away as it builds in speed and volume. The soloist enters with a different theme, and this builds to a climax, after which the soloist plays a short cadenza that fades away as another theme is played by the winds accompanied by the strings and the clicking of castanets.
The piano and orchestra comment on some of the material heard until the orchestra takes up the opening clarinet theme. The soloist plays an expansive variant of the theme. After tremolo strings softly play in accompaniment to the piano, the piano descends in a delicate figure that ends with the orchestra beginning to chug out the opening of the fat-paced material heard in the beginning, and orchestra and soloist rapidly bring the themes back from the exposition.  The whirlwind of piano and orchestra returns one more time and brings the movement to a close with a bang.

II.  Tema con variazioni -  The theme is played by flute and clarinet, and is followed by 5 variations:
1.      The piano broadens the theme and is joined by the orchestra that repeats the theme, as the soloist plays high in the treble.
2.      A trumpet plays the theme as soloist and orchestra play a rapid accompaniment.
3.      The theme is barely recognizable as it is torn asunder by the soloist as the orchestra tried to get things back on track, but not for long.
4.      The theme has transformed to an ethereal dream as the orchestra and soloist slowly unwind the mystery.
5.   The music quickens as orchestra and soloist pound out parts of the theme, as it builds to a climax that quickly dissolves into a more recognizable appearance of the theme. A coda helps the music wind down further, until a low E minor chord ends the movement.

III.  Allegro ma non troppo - Bassoons and pizzicato strings play the A minor first theme while the soloist interrupts periodically with a theme of its own. These two themes are developed until the tempo and dynamics slacken with the second theme in C-sharp minor. The piano interrupts this theme as well with another of its own before the C-sharp minor theme returns with the mood taking a late Romantic turn as it is developed. Shifting harmonies change the theme as the soloist plays rippling scales. A climax is reached, and the quiet return of the first theme begins.
The soloist’s part becomes a virtuosic tour deforce as the pace is quicked, along with very difficult maneuvers such as double-note glissandos for each hand. Prokofiev’s piano technique must have beene impressive, for he premiered the work in Chicago in 1921 as soloist.  The piano and orchestra continue to battle each other until the final C major chord. 


Monday, May 4, 2020

Prokofiev - Piano Concerto No. 1 In D-flat Major


Sergei Prokofiev was one of the original Russian 'bad boys' of music.  His early compositions were fraught with dissonance and did not sit well with the musical establishment. But there was something more to his music than just noise and cacophony. He used dissonance as a great chef uses seasonings. He could be bold and innovative, and he could also be very subtle and subdued. He had a great gift of melody, and was highly imaginative.

He was born in 1892 and heard his mother play the works of Beethoven and Chopin in his early childhood. After studying privately with Reinhold Gliere, he was introduced to Alexander Glazunov who was so impressed by some of Prokofiev's compositions that he persuaded his mother to enroll him at the St. Petersburg Conservatory at the age of 12.

He wrote in most genres of music; opera, symphony, ballet, but he is most well -known for his compositions for piano. He was a virtuoso pianist himself and debuted his first 3 piano concertos as soloist with orchestra.  The 1st piano concerto was written in 1911-1912, and was received almost unanimous negativity.  It is in one movement, but has three distinct sections as a conventional concerto. But Prokofiev suggested that it could be looked at as written in a one-movement sonata form:

I. Allegro brioso - The first section is similar to the exposition section of a sonata movement. Strings and brass by way of introduction herald the beginning of the movement with three chords of D-flat major. The soloist appears and the broad main theme is played with full orchestra. The orchestra then plays the theme without the soloist. The key signature changes and the soloist alone for a time in music that is typical of his style that was already formed at 19 years old. Driving rhythm, large leaps up the and down the keyboard and a tendency to treat the piano as a percussive instrument. This leads to another spiky theme for the piano with accompaniment. The theme continues as the key changes back to D-flat major, and switches back and forth in key until the music slows and the key changes to E minor.  

To the melancholy theme played in the orchestra, the piano adds a more subdued accompaniment in single notes for both hands that range from high to low on the keyboard, to the melancholy theme played in the orchestra. Piano glissandos that are usually used for more dramatic effect by composers appear in the background. The piano then plays a solo section that leads to the tempo being gradually increased as instruments make an entrance along the way to increase the tension and drive, until the opening broad theme reappears in the orchestra. After a climax is reached, the music slowly winds down and ends with lone notes by the cellos. After a very brief pause, the next section begins.

II. Andante assai - This part is considered an insertion or episode between exposition and development. The key changes to G-sharp minor as muted and divided strings softly begin the section. Short motifs are played by the clarinet and horn until the soloist enters. The piano is much more subdued as Prokofiev gives the instruction of dolcissimo, but it isn’t quite tamed completely. Large spread chords punctuate the delicate 16th note accompaniment in a piano solo.  The music grows more impassioned and gets louder as the piano large chords against the strings. Slowly orchestra and piano grow quiet until the flutes, clarinets, horns and strings fade out to leave only the piano to end the section.

III. Allegro scherzando - This section comprises the development and recapitulation of a sonata form movement.  The key changes, perhaps to C major at least by having no sharps or flats in the signature, but pizzicato strings, horns and tubas play a strange chord that consists of A-flat in the bass, G-flat - C - E - G natural. The piano trips upward in a chromatic scale with added grace notes, as the music becomes hard driving again.  A secondary theme from the first section appears in the trumpets and horns. The piano then takes this theme and develops it solo. The melancholy theme from the first section then returns briefly. The music grows in texture and volume until the main theme from the first section enters and serves the function of a recapitulation. The music ends as it began, with a chord of D-flat major.




Friday, April 24, 2020

Rachmaninoff - Rhapsody On A Theme of Paganini


Sergei Rachmaninoff initially wanted to be a composer, but he had to rely on his abilities as a pianist  to make a living after he left Russia. The revolution of 1917 saw the loss of Rachmaninoff's estate (he was a member of the bourgeoisie), and his way to make a living. He was 44 years old when he left his native country in late 1917 and he never went back.

In 1921 he immigrated to the United States and toured extensively as piano soloist and conductor. He completed only six compositions between 1918 and 1943, the year of his death. His home in the U.S. reflected his homesickness for his native Russia, as the household practiced Russian customs and had Russian servants. He did build a vacation home on Lake Lucerne, Switzerland where he spent his summers. It was there that he wrote Rhapsody On A Theme Of Paganini in 1934.

 Rachmaninoff himself was the pianist at the premiere of the work with the Philadelphia Orchestra, Leopold Stokowski conductor. Rachmaninoff admitted the work was very difficult and that he had to practice it diligently. Paganini's 24th Caprice For Solo Violin is the theme used for the variations, a theme used for other sets of variations by Liszt, Brahms, and other composers. 

Coincidentally (or not) Rachmaninoff writes 24 variations on the theme, the same number as Brahms. The work is played non-stop, but the variations are arranged in three groups that roughly coincide with the usual fast-slow-fast movement plan of a conventional piano concerto.


Introduction : Allegro vivace - A nine bar introduction that uses a fragment of the theme.

Variation 1 (Precedente) - Instead of playing the theme itself, Rachmaninoff plays the first variation on it. Actually a variation on the bass of the theme, as Beethoven did in the last movement of the Third Symphony ‘Eroioca’.

Theme -  The theme is first heard in the strings as the soloist plays a simple outline of the harmony in A minor.  

Variation 2 - It is the piano’s turn to state the theme at the beginning of this variation. The piano then outlines the theme in arpeggios as woodwinds, horn and strings trade off playing fragments of it.

Variation 3 - The piano plays a simple counter melody while the woodwinds and strings chatter amongst themselves.

Variation 4: Piu vivo -  The tempo increases slightly, the piano has each hand in turn take up a fragment of the theme as an accompaniment to the strings and single woodwinds.

Variation 5 - Alternating chords in the piano play chords that soon lead up to a few sparse octaves and snatches of the theme played an octave apart in each hand.

Variation 6 - A quiet variation that has the piano play a part of the theme, and a cadenza-like ritard that ends the phrase. The piano part becomes slightly more complex and louder, and then returns to the quiet of the beginning.

Variation 7 : Meno mosso, a tempo moderato -  While a solo bassoon plays the theme, the piano quotes the ancient plainchant Dies Irae, something of a fixation for Rachmaninoff as it appears in other of his compositions.

Variation 8 : Tempo I - The music grows more intense, the piano part more complex as the variation progresses.

Variation 9 -  Violins and violas are instructed to play col legno, with the wood of the bow. The strange clicking sounds that result are played in triplets with the rest of the orchestra that have the first beat in the triplet as a rest, thus giving an off the beat feel to the music. The piano plays the theme in eighth notes separated by an eight rest, which further adds to a disquieting rhythmic pattern. The dynamic range of the variation stays mostly on the quiet side. All of it adds up to appropriate music after the ‘Day Of Wrath’ of the Dies Irae appearance, as strings played col legno have been compared to the rattling of bones.

Variation 10 - The Dies Irae returns, and the music slowly reaches a quiet conclusion to the variation. From the beginning of the work to the end of the 10th variation has all been in the key of A minor, and these variations have been considered representing the first movement of a concerto.  

Variation 11 : Moderato - This variation remains in A minor, and is considered to be the start of the slow movement of a concerto.  The tempo has slowed; the mood is more melancholy than fierce. The piano weaves chromatic runs and octaves as the orchestra adds discreet accompaniment. The piano takes off on a fortissimo run of arpeggios and is accompanied by glissandos on the harp, after which the piano winds down and plays a solo.  

Variation 12: Tempo did Minuet to - This variation is in D minor, and as indicated is in the tempo of a minuet - a slow minuet.  The orchestration is very sparse with alternating solos for clarinet and horn, with accompaniment by the harp.

Variation 13 : Allegro - Still in D minor, the music picks up the pace and volume as the strings play the theme while the piano hammers out chords.

Variation 14 - The key shifts to F major, the volume increases, and the piano takes a rest while the orchestra plays the varied theme. When the soloist does enter, it mostly at an accompaniment level.

Variation 15 : Piu vivo scherzando -  The piano plays a rapid, brilliant solo in F major before the orchestra joins in. The piano keeps up its virtuosity until the variation ends with a quiet chord in the piano.

Variation 16 : Allegretto - The key changes to B-flat minor as muted violins and violas softly begin the movement. The oboe and cor anglaise take up the theme while the piano plays a harmonic counter theme.  A solo violin plays while the piano changes to a short chromatic run. After the dialogue between piano and violin, the variation returns to the beginning as the violins lead to the next variation.

Variation 17 -  The piano continues in B-flat minor as it plays slow arpeggios to accompaniment by woodwinds with the violins and violas punctuating with tremolos. The piano makes a wonderful modulation along with the cellos to the next variation.

Variation 18 : Andante cantabile -  The piano begins in D-flat major with the variation that is known all by itself, a variant of the original theme where the 4-note motive of the theme is inverted.  This variation not only shows Rachmaninoff’s mastery of the piano and orchestration, but also shows his gift for melody. The piano plays the variant by itself until the strings take it up. It then plays accompanying chords. The music keeps building until upon the third repetition of the inversion the volume, passion (and rubato) increase as the piano continues to accompany with chords. The music slowly begins to grow quiet until the piano ends the variation pianissimo. The end of this variation suggests the end of the slow movement of the piano concerto.

Variation 19 : A tempo vivace -  The next variation begins with 4 bars of pizzicato strings, and it is back in the key of A minor. The soloist enters and plays in eight note triplet arpeggios that are marked quasi pizzicato.  

Variation 20 : Un poco piu vivo -  The music increases in tempo as the strings race in sixteenth note figures. The soloist skips around the keyboard in single notes for each hand and finally switches to octaves. Clarinets and flutes join in with the running sixteenth notes as the variation builds to a crescendo and then back to quiet at the end.

Variation 21 : Un poco piu vivo - The piano plays in triplets in each hand as the orchestra punctuates the harmony. The music keeps on building in intensity.

Variation 22 : Un poco piu vivo (alla breve) - The piano plays short, clipped chords with an indication of marziale. The accompaniment is light to begin with, but as the soloist grows in volume and intensity, more instruments start to play. The music builds to tremendous climax, after which the piano plays triplets in each hand. The triplets become sixteenth note arpeggios. Soloist and orchestra trade off statements in triplets until the climax is reached. The soloist plays a cadenza that leads to the next variation.

Variation 23 -  The piano plays the theme in A-flat minor (!) before the strings bring it back to A minor.  The soloist has another cadenza and that leads to the finale.

Variation 24 : A tempo un poco meno mosso - The tempo slows slightly as the piano plays another theme variant to a light accompaniment.  Piano and orchestra grow more involved until a final loud appearance of Dies Irae is heard in the brass. The piano is all but drowned out by the orchestra as things are leading up to a big finish that includes a double glissando by the soloist. The volume is fortissimo, the music slips into the key of A major, but after one last outburst, the music ends with the piano quoting the opening of the original theme’s first notes quietly with an equally quiet accompaniment.

Wednesday, April 22, 2020

Paganini - Violin Concerto No. 1

 Niccolo Paganini wrote his first violin concerto in 1817-1818 and the solo part shows that his dazzling technique was already in evidence. The audiences marveled at his technique and the new effects of violin playing he had developed.

Paganini was very secretive about his 'tricks of the trade' and didn't include the part for solo violin with the score. When he would play the concerto, only the orchestral parts would be given to the appropriate players and there was many times no rehearsal of the work. One of the tricks he used in the concerto was that the orchestra parts were written in E-flat major while his solo part was written in D major with his solo violin mistuned a semitone higher so that he was actually playing in E-flat. All of that is pretty confusing for the average listener, but in simple terms this trick allowed Paganini to play effects in E-flat that he couldn't with an ordinary tuning and it also helped the violin to be in a greater tonal contrast with the orchestra.

The concerto shows the influence of Italian Opera of Paganini's time, specifically Rossini's operas and especially the Bel Canto style of singing in them. Paganini was accused of being less than a serious musician by some in his day for his tricks and going out of his way to please the crowd, but the seriousness of his intentions with this first concerto shows that he was, above everything else, a very skilled and passionate musician. 

I. Allegro maestoso - The concerto begins with the orchestra calling the listener to attention with loud chords, and then the themes are presented in the usual form of an exposition in sonata form. The orchestra plays for a relatively long time before the soloist enters, and the first theme is a rhythmic one that is highlighted by drums, brass and cymbals.  The soloist enters and takes up the themes and expands upon them considerably in form and ornament, while also adding new material.  There is another section for orchestra alone, which leads to the soloist joining the orchestra in loud chords as the beginning of the movement. The second theme is given a melancholy variation in the development section in a minor key, with many examples of the soloist playing alone using some of the techniques of violin playing that Paganini had devised and made famous.  The recapitulation has the soloist displaying the themes with more technical wizardry until a cadenza is played. After more razzle-dazzle from the soloist in the cadenza, the orchestra returns and closes out the movement with the themes that opened it.

II. Adagio espressivo - the second movement shows the depth of feeling and how dramatic Paganini could be in his music. The orchestra plays a prelude for the entrance of the soloist, who plays an uncomplicated tune to pizzicato and bassoon accompaniment.  It is like listening to a mini-dramatic opera, with not any flashes and trickery of technique (at least not obvious ones). Paganini makes the violin sing like an opera singer.  The movement reaches a climax, and then the soloist returns to the long aria it is playing, with the orchestra giving a discreet accompaniment. The music grows in loudness as the music dwells in a major key for a section. This doesn’t last very long before the music turns to the minor again.  The brass plays loud chords that slowly grow quiet while the soloist gives ad answers to it. But at the very last, the music ends in a major key.

III. Rondo - Allegro spiritoso - The fireworks come back in the rondo finale as Paganini's bow ricochets off the violin strings as the soloist plays the theme. The theme is repeated to set it in the ear before new material is introduced. The first episode showcases the soloist in the higher register of the instrument in chords in harmonics. The movement is filled with impressive techniques as the rondo theme is played between episodes of new material. A short cadenza is played, and then soloist and orchestra approach the loud ending. 


Saturday, April 18, 2020

Mendelssohn - Piano Concerto No. 1 in G Minor

 Felix Mendelssohn musical precociousness was apparently comparable to Mozart's, but unlike Mozart he was fortunate enough to be born into a family that was financially well off . His parents recognized his musical gifts early on and hired the beset teachers of the time to give him private lessons.  By the time Felix was fourteen he had written 12 symphonies for strings and many other compositions. The Mendelssohn household in Berlin held private concerts in their home every Sunday morning. There was a private orchestra of musicians that knew the family and participated in the concerts where Felix's music was heard.

Some of Mendelssohn's most well known works were written when he was still a teenager. His String Octet when he was sixteen, the Overture To A Midsummer Night's Dream when he was seventeen.  His style seems to have developed quite early, and stayed relatively unchanged during his short life.

His Piano Concerto No. 1 was written in 1830 when he was 21 years old. He played the premiere in Munich in a concert that also included his Symphony No. 1Overture To A Midsummer Night's Dream and some improvisations at the keyboard.  Mendelssohn said he had composed the concerto in only a few days and didn’t have a very high opinion of it:

"I wrote it in but a few days and almost carelessly; nonetheless, it always pleased people the most, though me very little.”

Franz Liszt Mendelssohn experimented with linking movements together in this concerto, as there is no formal pause between movements. But there is no doubt the concerto is in three distinct sections. 

I. Molto allegro con fuoco -The concerto begins with a few bars of introduction by the orchestra, and then the piano enters with a bravura display. Many piano concertos of the time opened with a long orchestra introduction of themes before the piano enters. There are a few notable exceptions, such as Mozart's Piano Concerto No. 9 and Beethoven's 4th and 5th Piano Concertos. These examples have the piano enter with a brief statement or comment, and then it remains silent until the end of the orchestral introduction. Mendelssohn has the piano enter early also, but it doesn't remain silent. It continues to play, and introduces the themes while the orchestra comments on them later.  This makes Mendelssohn's concertos one of the first truly Romantic concertos that broke with tradition.

Franz Liszt and Clara Schumann helped make the concerto very popular in its day. With the quick tempo and a piano part bristling with arpeggios, scales, and octaves, the piano is the star and leader of the ensemble as much of the thematic development is taken up by the piano. The orchestra plays a secondary role, but adds much color and balance to the movement. Mendelssohn manages to create a movement full of fire and passion that retains elegance as well. The movement segues without a break to the next movement.

II. Andante - The fiery first movement segues into a gentle andante, one of Mendelssohn's songs without words, in E major. This movement is slow, with a middle section that changes key for contrast. The initial theme is slightly varied when it returns to end the movement.

III. Presto - Molto allegro e vivace - A fanfare for brass leads into the finale, a quicksilver rondo where the piano ripples its way through episodes and the refrain of the theme. The soloist's fingers scamper over the keys in music that Mendelssohn intends to be played very fast by the tempo designations. Towards the end of the movement snippets of themes from the first movement appear, and the movement has a brilliant conclusion.

Thursday, April 16, 2020

Liszt - Totentanz (Dance Of Death)

 Franz Liszt began planning the work as early as 1838 after he saw The Triumph Of Death fresco by Francesco Traini in the Campo Santo in Pisa, Italy. But until he dedicated himself to composing over traveling Europe as the most famous virtuoso of his day, the first version was not completed until 1853.  Liszt revisited the work in 1859 and completed the 2nd version, the version most often heard, in 1864.

The Romantic era in general had a certain amount of interest in the subject of death, but Liszt took it even farther. He composed a number of pieces that dwelled on the subject to the point of morbidity.

Totendanz is a set of variations (or as Liszt put it, a paraphrase) on the Gregorian chant Dies Irae, or day of wrath, words that were taken from the Bible that depicted the day of final judgement. The original Latin text and music for Dies Irae date back to the 13th century. The chant is most frequently heard in the Catholic Requiem Mass, and Liszt is just one of many composers that used the melody in their compositions.
The Triumph Of Death fresco by Francesco Traini

Opening theme ‘Dies irae - The music begins with the soloist playing deep in the bass of the piano in marked tone clusters while the orchestra plays the theme.  The piano then plays the first of three cadenzas that span the compass of the keyboard with the orchestra contributes short chords after each. The orchestra then takes up the theme while the piano hammers out chords in the treble range of the piano in rapid tempo that makes it sound like a huge 8-note tremolo. A climax is reached and the music grows quiet. The piano has a solo that leads to -

Variation I (Allegro moderato) - The bassoon and violas play a variant of the melody, and the piano repeats it. Clarinets and bassoon play the second part of the melody and the piano repeats it, and leads to -

Variation II - The left hand of the piano plays a variant of the theme low in the bass as the right hand plays runs higher in the bass. A horn and pizzicato strings add to the texture.  The next part of the variation has piano glissandos in the right hand, the bass plays a dotted rhythm while trumpets and low strings are added. The drama increases as the piano plays glissandos in both hands as the woodwinds and strings lend accompaniment. This leads to -

Variation III (Molto vivace) - The soloist goes back to the deep bass for an agitated section that eventually climbs into the high treble. A full stop comes upon a D minor chord that leads to -

Variation IV (Lento) - For piano solo, this gentle canon gives some rest after the preceding drama. After it has played out, a cadenza in B major (the only section of any length in a major key in the piece) gives repose. The music then goes back to the minor with a solo clarinet playing a simple variant of the melody with a light piano accompaniment.  Another section of transformation begins abruptly with the piano increasing the tempo to presto, with octaves in each hand leading to -

Variation V (Vivace) - The first part of the theme is rendered contrapuntally by solo piano in a fugue with repeated notes. The orchestra joins the soloist and the music goes somewhat a field to different keys. There is a section of the piano part that has the directive strepitoso, meaning clamorous, impetuous. The section ends in a long cadenza for the soloist and leads to -

Variation VI (Semper allegro (ma non troppo)) - This is a mini-set of variations itself.
1.            The horns play a figure in triplets while the orchestra, minus the other brass, accompany.
2.            The piano enters and plays a variant with pizzicato low strings, flute and triangle.  
3.            Oboes, piano, strings, and the triangle play a variant.
4.            The piano imitates hands as the woodwinds and strings fill out the harmonies.
5.            The figure is played in the bass of the piano with chords in the right hand. Woodwinds fill in harmonies while the strings play col legno.
6.            The piano plays a variant that is marked piacevole that is punctuated by chromatic runs played by both hands a third apart that venture high into the treble.
7.            The piano accompanies with chords and octave runs while the orchestra plays another variant.

This mini-set of variants ends when there is another cadenza that has the Dies Irate played low in the bass while a tremendous minor scale is played that covers the rest of the keyboard.  The glissandos appear again, as the music leads up to a raucous closing. There is no written part for the piano in the score, but it is not out of place for a soloist to play along with the orchestra. There is a tradition for the soloist to play in contrary motion to the orchestra with the final chromatic run and final chords.

The modern way in which Liszt treated the piano in the middle of the 19th century was ahead of its time. His percussive treatment of the instrument was a big influence on a 20th century fellow Hungarian composer, Bela Bartok.