Not all composers keep a record of when a composition was
written, but Mozart kept a catalog of his compositions, so we do know that his final
three symphonies were composed over the summer of 1788. Musicologists
have disagreed whether any of the last three symphonies were performed in
Mozart's time, but in the case of the 40th Symphony, it exists in two versions.
The original with no clarinets, and the revision with clarinets added. It's
improbable that Mozart would have revised the symphony without a performance of
the original version.
Mozart was fond of the clarinet, but at the time it
hadn't become a permanent member of the orchestra. That began to change in the
1780's. Mozart had a great understanding of wind instruments and their
possibilities. With its large range of notes, flexible dynamic range, and
different tone colors, the clarinet became a valuable member of the orchestra
in a short time.
I. Molto allegro -The symphony begins with the disquieting murmur
of the violas playing an accompaniment three quarters of a bar before the theme
itself begins. The theme is a simple one of slurred eighth notes and quarter
notes that sigh out the theme with an occasional louder outburst. The second
theme is chromatic in nature, but is rooted in the key of B-flat major.
The first theme is heard again, and is shortly
developed into the key of B-flat major, and the exposition is repeated.
The development begins strangely in the key of F-sharp, and snippets of the
first theme go through numerous transformations of key and sections of
intensity alternating with sections of quiet tension. The recapitulation has
the return of the first theme in G minor, and a longer section that segues to
the second theme, this time played in the home key of G minor. A coda includes
a rising, syncopated section that leads to the final statement of part of the
first theme, and the closing chord in G minor.
II. Andante - The movement is in E-flat major, and begins with
a lyrical theme that weaves its way contrapuntally through the orchestra. It is
written in sonata form and has a chromatic character to the music similar to the
first movement. There is an increase in volume and tension in the development
section. The recapitulation plays through the music until the music ends
calmly.
III. Menuetto - Allegretto -The key of G minor returns with the next
movement. Although marked a 'menuetto', it bears no resemblance to the
refined dance. It is gruff, off the beat accented music that begins with two
irregular three-bar phrases. This music also has a fair amount of chromaticism
going on, which in this case adds to the terseness.
The trio is in marked contrast, and has a dialogue between strings and winds, in the key of G major.
IV. Finale - Allegro assai-The finale begins with a Mannheim rocket in the
first violins. This quiet snippet is followed by a louder answer in the
orchestra.
The theme
alternates from piano statement to forte answer, until a section of running
eighth notes leads to the second theme in B-flat major which leads to the
exposition being repeated.
The lead-in to the development is an astounding eight bars of music that
begins with the Mannheim rocket in B-flat major that suddenly loses all sense
of key. In 1788, Mozart wrote a section of music that carries on the
chromaticism of the 3 previous movements to the ultimate extreme as all the
notes but one of the chromatic scale are played over 4 octaves in unison by the
full orchestra.
The only note left out of this tonal and rhythmic chaos is G
natural, as if to disorient the listener even more by denying the sounding of
the tonic note. The development continues with chromaticism that must have been
alarming to listeners at the time. The music turns borderline violent as themes
are stated against each other in counterpoint, when suddenly the first
theme returns with the recapitulation. The second theme appears in G minor, and running
eighth notes keep up the severity until the closing G minor chord.
Both books of The Well Tempered Clavier contain 24 preludes and 24 fugues. That's a total of 96 pieces in both books combined. There have been some live performances of the complete Book I or Book II, but none to my knowledge that had them both on the same program. That would be far too much of a good thing for anyone but a musical masochist.
With the music of Bach, the listener is confronted by multi-levels of creativity. There is the visceral pleasure of hearing it, as Bach's counterpoint can be so smooth and flowing that one forgets about it. He is far from being pedantic, and knows how to write a good tune and not just fugue subjects, and he is well aquainted with music in the different styles of his era. And of course he was a master crasftsman of music, with evidence that abounds in the Well Tempered Clavier. The interlacing of voices and textures is fascinating. and there is something about the fugues that make sense, whether the listener knows anything theoretical about harmony or counterpoint.
But this is music of over 250 years ago. For me at least, too big of a chunk at one time makes my ears go a little numb and my brain to get overtaxed. With all that has happened in the art of music since the death of Bach, it's no wonder that many listeners have a limit to what they can absorb at one time. That is why I broke down The Well Tempered Clavier into six preludes and fugues in a post, and sometimes that still pushes the limits of the modern ear.
Prelude and Fugue No. 19 in A Major, BWV 864 -This prelude is essentially in three voices that flow together to form a quite satisfying piece. There are no cadences that stand out to disrupt the calm atmosphere as a constant pulse of eighth notes continues to the end.
The 3-voiced fugue is in contrast to the prelude as there is more agitation, but with no sense of tension within it. Things move at a different pulse than the prelude, but for all the differencesd between the two they complent one another.
Prelude and Fugue No. 20 in A Minor, BWV 865 -The prelude begins with short notes in the right hand played over longer notes in the left, a feature that changes in the hands through the piece.This is a prelude that is in two voices. Sycopated eighth notes are sprinkled throughout the piece. The prelude is in two repeating sections, of similar length.
The abrupt two-measure subject consists of but 7 notes. But the accompanying material is not as much. as small note values make their way through the piece. Of interest is the final cadence which is in A minor, unlike the fugues in Book One (and some in Book II) that end with a Picardy third, that is a chord in the parallel major of the minor key.
Prelude and Fugue No. 21 in B-flat Major, BWV 866 -Another prelude in two sections with the second section longer than the first. The time signature of 12/16 hints at it being a gigue, a dance that is found at the end of a Baroque dance suite. The stylized dance forms were just that; many of them written by baroque composers were not meant to be danced to, any more than some of the stylized minuets of Haydn and Mozart. The obligatory repeats of this prelude make it one of the longer ones, and the mood is lively, if not in actual tempo then in feeling. There is a grand pause three lines from the end of the second section, after which each hand plays a 5-measure run of sixteenth notes with the final six bars summing up the section before the simple ending a B-flat an octave apart in eachhand.
The subject of the fugue is four bars long with the distinction of eigth notes being slurred in pairs in the 2nd and 3rd beat of the 3rd and 4th measure. A good performance of this fuge has these slurs repeated with every appearance of the subject.
Prelude and Fugue No. 22 in B-flat Minor, BWV 867 -The texture of this prelude is polyphonic, in three voices. It isn't obsessively slow in tempo as the movement of the voices need a certain amount of reined-in velocity. There are moments of major key sounds, and it ends in B-flat major.
With a subject more than 4 bars long and with two rests in its first two measures, this fugue takes some time to release the 4 voices. It winds its way with voices entering with repeats of the subject as well as other material, and the 4th bar from the end has all 4 voices speaking at once in eighth notes. The fugue ends in B-flat major.
Prelude and Fugue No. 23 in B Major, BWV 868 -A quite lively prelude that bristles with virtuoso toccata passages. It moves at a brisk pace with a steady rush of sixteenth notes, and ends before you know it.
A fugue with a four bar subject that is in marked contrast to the prelude. The tempo is more andante. Any slower and the fugue doesn't hold together very well. Bach's lack of tempo indications have given rise to all manner of interpretive suggestions by editors, some good and some not so much. The right tempo for a prelude and fugue has to be discoverred by the performer. A tempo that allows the accentuation of voices and textures first and foremost.
Prelude and Fugue No. 24 in B Minor, BWV 869 -A rarity with this prelude is a tempo designation given by Bach himself. The short notes within the prelude are written out ornaments, so Bach must have had certain definite ideas about this prelude. The prelude has the pieces of a sonata in form, and it ends in the minor.
This 3-voiced fugue has a subject 5 and a half measures long. There are many appearances of the subject as well as other non-subject material. The tempo can be fairly moderate, but the workings of the voice makes it seem like it goes faster. To round out the final fugue of the '48', Bach ends it with a Picardy third in B major.
The average grand piano has 230 strings for the 88 keys of the keyboard. They range from 3 strings per note in the treble, to 2 strings further down the bass, until the lowest bass notes have but one string per note. The modern piano has seen an increase of the tension on the strings to improve the tone and volume of the instrument, and the tension on each string ranges from 160 to 200 pounds. That gives a total inner tension exerted on the frame of over 18 tons. That's the reason why pianos are so heavy. There is an inner cast iron frame to deal with such tremendous forces, otherwise the instrument would collapse under the tension.
The preceding information is by way of introducing unconventional music for the piano. Imagine using fists or forearms to play clusters of keys, or playing directly on the strings by plucking, rubbing, or scraping with a finger nail. Or maybe inserting various things between the strings such as screws, bolts, washers, etc. Maybe tapping the strings with a finger, or bowing the strings.
All of this has been done. Some of it quite a while ago. And I can't help but think some of these techniques may not be all that good for piano actions or strings. With the cost of a modern 9 foot Steinway Model D being around $171,000, I would think that sticking nuts and bolts and fingers inside and using the piano in ways it was not designed for may not be too wise, despite the interesting sounds achieved.
Henry Cowell composed pieces that consisted of tone clusters, groups of notes played by the fist or forearm, such as his piece The Tiger of 1928. And pieces to be played on the strings directly, such as the Aeolian Harp of 1923 where the piano keys are silently depressed and the opens strings are played by a finger gliding over them, and The Banshee of 1925, where the damper pedal of the piano is kept down while fingers pluck, glide and scratch over the strings.
The notorious bad-boy of music John Cage developed the Prepared Piano where he put all manner and sizes of nails, screws, nut, bolts, and other paraphernalia between the strings. The result was sounds that were completely different than a piano, such as the Sonata V For Prepared Piano of 1946.
Add to all that the idea of the bowed piano, first suggested by composer Curtis Curtis-Smith in 1972, where pieces of mono-filament fishing line and other items that are rosined and positioned under the strings so that when the performer pulls back and forth on the fishing line a tone is produced. Enter Stephen Scott, a composer who took the idea and created a group of players known as The Bowed Piano Ensemble. Scott composes for this group, and there are many techniques besides bowed piano that he uses to create an interesting sound palette. One of the pieces he has composed for the instrument is titled Entrada. The various techniques can be seen in the video below of The Bowed Piano Ensemble playing the piece.
By my reckoning, there are 10 performers crowded in and around the piano, so this piece takes much coordination and choreography to play successfully.
Johann Sebastian Bach was an artist that was in many ways self-taught. He did have instruction from his family in clavier, violin, and organ, but he wasn't satisfied with just that. He wanted to know as much as he could about his art and craft, so he copied out music of other composers as well as traveled to hear masters play so he could learn from them. A case in point is the 250 mile journey he took on foot when he was 20 years old from Arnstadt to Lübeck to hear and learn from the famous (at the time) organist Dietrich Buxtehude. This wasn't the first time Bach had traveled a long distance. At the age of 15 he traveled from Ohrdruf to Lüneburg, a distance of 200 miles, to study at St. Michael’s School where he sang in the choir.
All of the travel, study and exposure to other musicians and music gave him an insight into the craft that made him a great performer, composer and teacher. Indeed, his duties at St. Thomas Church in Leipzig, a position that he held from 1723 until his death, required that he supervise and provide the music for 4 churches in the community, play the organ as well as teach the choir and instrumentalists. Bach must have had a robust constitution most of his life, for he was a very busy man.
He taught his herd of children as well. some of them went on to make music their life and were very influential in their time. Johann Nikolaus Forkel wrote the first biography of Bach in 1802. Forkel knew some of his children, and C.P.E. Bach especially gave Forkel insight into the elder Bach's teaching methods. Forkel wrote:
To teach well a man needs to have a full mind. He must have discovered how to meet and have overcome the obstacles in his own path before he can be successful in teaching others how to avoid them. Bach united both qualities. Hence, as a teacher he was the most instructive, clear, and definite that has ever been. In every branch of his art he produced a band of pupils who followed in his footsteps, without, however, equaling his achievement.
For months together he made them practice nothing but simple exercises for the fingers of both hands, at the same time emphasizing the need for clearness and distinctness. He kept them at these exercises for from six to twelve months, unless he found his pupils losing heart, in which case he so far met them as to write short studies which incorporated a particular exercise.
The Well-Tempered Clavier was written with this in mind, as well as being an example of how a well-tempered tuning of keyboard instruments opened up the possibility of playing in all 24 major and minor keys. As Bach wrote in the preface to the work:
...for the profit and use of musical youth desirous of learning, and especially for the pastime of those already skilled in this study.
Prelude and Fugue No. 13 in F-sharp Major, BWV 882 - A prelude of persistent dotted eighth note patterns. It is in 2 voices with the dotted note patterns appearing in almost every bar, usually in one voice or the other, seldom at the same time. The mood is maintained throughout until a few bars before the end when the music drifts into F-sharp minor. But this is momentary, and the prelude ends with a cadence to F-sharp major.
The subjects of Bach's fugues are like the seeds of plants. Some are simple, some are not, most of the subjects of his keyboard fugues are short, mainly because they were meant to be played on the non-sustaining keyboards of the harpsichord and clavichord. The fugues written for organ for the most part have longer subjects. The subject of this fugue is unusual in that it begins on the leading tone, that is the seventh note of the F-sharp major scale, instead of a note within the F-sharp major triad. This doesn't guide the ear to the key of the piece, but rather away from it. The music winds its way, but Bach brings it all to a satisfying conclusion.
Prelude and Fugue No. 14 in F-sharp Minor, BWV 883 -This prelude is in 3 voices, but they are not equal in importance. The upper voice is dominant, and the music floats at an easy pace, with tinges of melancholy here and there. A little over halfway through, Bach stops the music altogether for a pause that leaves the music hang in midair. The music returns and makes its way to the final cadence in F-sharp major.
Bach's fugues are challenging not only for the technical aspects of playing the notes. There is also the questions the performer has to make on which is more important in each fugue; the harmonic structure, melodic structure, phrasing and so on. For a performance to be all it can be of any of these works, a performer needs to make decisions. That is why there are so many books written about the WTC, there is a wealth of ideas contained in each pairing of prelude and fugue, and a tremendous amount in the entire two book set. The subject of this fugue is a little longer than three bars, and it is is in 3 voices. There is much melodic content in the fugue besides the subject itself, and Bach uses the subject as the thread to tie it all together.
Prelude and Fugue No. 15 in G Major, BWV 884 -as evidenced by this prelude and the G major prelude in the first book, the key of G major was a playful one for Bach. It is in 2 voices (for the most part). It is one of the few preludes to be in 2 repeated parts, with the second part twice as long as the first. The prelude has a resemblance to some of the sonatas of Domenico Scarlatti. Whether Bach actually knew of Scarlatti or his music isn't definite, but at this time in his life Bach would sometimes write in the more contemporary galant style. With characteristic running sixteenth notes, the prelude is lively and vivacious.
The running sixteenth notes continue in this novel subject of 5 measures. This subject statement is heard only 6 times throughout, with the balance of the music taken up with counter subjects and episodes. In its liveliness, it is a perfect accompaniment to the prelude heard before it.
Prelude and Fugue No. 16 in G Minor, BWV 885 -This prelude is one of three in the entire set of 48 to have a tempo designation, Largo. Bach was adamant that this was not to be taken fast, but slow and stately.
Beginning on the second beat, the subject of this 4-voiced fugue has the 4th degree of the G minor scale (C) played out seven times at the end of it. As soon as the seventh C is sounded, the counter subject begins before the subject makes its second entry. The entry of the other two voices follows this pattern. The subject matter returns many times with changes in key, sometimes it plays against another version of the subject heard in a different voice. The music does end with a Picardy third (that is, with a major chord) but just barely. The final note of the fugue is a major third, B natural.
Prelude and Fugue No. 17 in A-flat Major, BWV 886 -A prelude of calm and sweetness of harmony. Although it is for the most part in two parts,s there are instances of chordal structures within it.
The subject of this 4-voiced fugue begins after an eighth rest and lasts for two measures. The seeming rhythmic simplicity hides the subtle syncopations within the piece.
Prelude and Fugue No. 18 in G-sharp Minor, BWV 887 -This prelude has unusual dynamic designations in it not normally found in the The Well-Tempered Clavier. In the third bar there is the term piano, while in the 5th measure there is marked forte. Perhaps this was meant for a harpsichord that could allow for different dynamics, or on the clavichord which was capable of slight variations in dynamics. The rest of the prelude is not so marked, but perhaps Bach did it to make the point that there were to be echo effects to be played in this prelude whenever the music demanded it and the instrument allowed it. There are two sections, almost of equal length; the second section has two more bars than the first. The prelude is mostly melody and accompaniment with little counterpoint involved.
The subject is 4 measures long, entirely in 8th notes, and the fugue looks remarkably plain on the printed page, but roughly half way through the fugue, Bach introduces a second subject that is more chromatic and of a different rhythm than the first. This helps the listener detect changes between the first half and the second half of the fugue, and helps avoid monotony. Each subject enters and leaves with differing voices, and aided by syncopation, they add variety. There are no increases of tension, no contrasts of major and minor. By the use of chromaticism and different motifs for each subject, as the subjects themselves, to create a mood of subtle color shifts.
Dmitri Shostakovich wrote his first symphony to complete his studies in composition with Maximilian Steinberg at the Petrograd Conservatory Of Music (now known as St. Petersburg Conservatory Of Music). The work was written in 1925 and premiered in 1926 by the Leningrad Symphony Orchestra. Shostakovich had been quite precocious at the conservatory, and was moved ahead of some classes due to his musical gifts. He was but 19 when the symphony premiered, and his mentor Alexander Glazunov, who was the director of the conservatory, used his influence to get the symphony performed.
The symphony was a rousing success from the first hearing, and the word spread to other countries and conductors, with Bruno Walter performing it in Europe and Leopold Stokowski in the U.S. By the time Shostakovich was 21, he was internationally known through this first symphony and was already being compared to Prokofiev and Stravinsky.
The first years after the October Revolution of 1917 saw the arts grow into an extension of the Communist State. Experiment was encouraged and rewarded, and Shostakovich was as much a product of this as any. He was born in 1906, so the Revolution was in his memory, with all the excitement and hardships that were to follow. Shostakovich was feted after the performance of the 1st Symphony, and it wasn't until a few years later that he came to lose his favored composer status to what critics (instructed by Stalin no doubt) labeled 'formalism'. What that term actually meant, no one seemed to know, but if you were involved with the arts and were labeled as a Formalist, there could be dire consequences.
I. Allegretto - Allegro non troppo -The first movement is full of turns of melody and economy of orchestration that keeps the listener's ear interested. So interesting are the sounds and uses of the orchestra that it can be difficult to realize that this movement is in traditional sonata form, but Shostakovich showed his mastery of the form as all good composers who have used it; namely that it is so well written that the form isn't obvious. Shostakovich's 1st Symphony is scored for the usual large orchestra, with the addition of many percussion instruments and the piano. The symphony opens with an introduction with trumpet and bassoon. Other instruments play off against each other with the strings leading into a theme is that derived from the opening music. It is a march that twists and turns in colorful orchestration, then leads to a gentle waltz-like second theme in the flute that is accompanied by strings pizzicato. The scoring is light, like chamber music. The opening theme reappears in a solo violin retelling. The orchestra gradually comes into full force in the development section. The first theme begins the recapitulation, followed by the waltz theme of the flute. A coda consists of restating the opening theme, and the movement ends very quietly.
II. Allegro - Meno mosso - The movement begins with the cellos and contra basses playing the same notes, but the cellos play a few different note values in addition to the eighth notes in the contra basses. This leads to the cellos finishing the motive ahead of the contra basses. The main theme that follows is played by clarinet over a pizzicato accompaniment. The strings take up the theme with the piano. The second theme is more tranquil, but with added background of occasional snare drum. The first theme reappears in the bassoon before the piano enters with a long run and its version of the theme. The second theme returns in a more boisterous version that ends with heavy chords from the piano, and the music slowly dies away, with a final comment from the snare drum. III. Lento - Largo - Lento -The third movement does away with the grotesque humor of the scherzo with a solo oboe set against a string accompaniment. This theme is taken up by cello, and the brass have a crescendo that leads to a calm section that plods along in an increasing sense of gloom. The strings give a sense repose, but the snare drum quietly enters into the mood and makes a crescendo that connects the third movement to the fourth. IV. Allegro molto -The music continues in gloomy tones until the clarinet and piano bring back more boisterousness. The movement bounces back and forth from fast to slow, serious to playful. The music is somewhat episodic, but colorful as the shifting moods lead to a tremendous crescendo in the full orchestra. This crescendo ends suddenly with the entrance of the solo timpani playing in triple fortissimo a rhythmic motive from the third movement. This is played three times, each time with a lower dynamic, until elements from the third movement return. The orchestra mulls these motives over until a trumpet signals the orchestra to begin a loud coda with fanfares and the final chords.
The set of thirteen miniatures for solo piano that were eventually titled Kinderszenen (Scenes From
Childhood) by Robert Schumann were gleaned from a group that originally contained thirty pieces. Schumann wrote them in 1838 while enduring a separation from his fiancé Clara Wieck, who was a concert pianist and away on tour.
The book of pieces was called Leichte Stücke (Easy Pieces), but Schumann came up with the descriptive titles for each after they had been composed.
1. Von fremden Ländern und Menschen (Of Foreign Lands and Peoples) - Although Schumann called these 'easy' pieces, that doesn't mean they are for children or easy to play musically. They are a set of miniature tone poems for the piano that reflect moods and feelings of Schumann's own childhood. The first piece has a simple motive that reappears in differing guises in some of the other pieces.
2. Kuriose Geschichte (A Curious Story) - Schumann himself said the titles of the pieces were "nothing more than delicate hints for execution and interpretation." What exactly what this curious story is about is left to the listener's imagination.
3. Hasche-Mann (Blind Man's Bluff) - A variant of the children's game of 'tag', this game has a blindfolded person groping about for someone else to 'tag' while they avoid them.
4. Bittendes Kind (Pleading Child) - Whether for a toy, piece of candy or something else, this piece depicts the child begging for something. The piece ends on a 7th chord that doesn't resolve until the next piece
5. Glückes genug (Happy Enough) - This piece resolves the previous one and shows that the child has gotten what it wanted. Schumann told his soon to be wife Clara that the pieces of the set were "more cheerful, gentler, more melodic" than some of his other piano music.
6. Wichtige Begebenheit (An Important Event) - With heavy chords and a left hand melody in the bass in the middle section, this is an important childhood event indeed!
7. Träumerei (Dreaming) - Perhaps the most well known of the set, this piece is like a fine gem, perfect in its feeling and construction. It has become as a song of mourning due to it being played in memorials to World War II, especially in Russia. But it was originally meant to be played a little faster than a dirge.
8. Am Kamin (At the Fireside) - in the key of F major like the previous piece, this conveys the happiness and comfort of sitting by a fire in the evening.
9. Ritter vom Steckenpferd (Knight of the Hobbyhorse) - A picture of a child riding on a rocking horse swinging a toy sword.
10. Fast zu ernst (Almost Too Serious) - Written in G-sharp minor, this piece has the right hand melody tied over the bar line which gives a slight restless syncopation to the music.
11. Fürchtenmachen (Frightening) - Moderate tempo music in the major mode alternates with faster music in the minor mode in imitation of being scared.
12. Kind im Einschlummern (Child Falling Asleep) - Gently moving music that begins in E minor, goes to E major, and ends with the child drifting off in A minor.
13. Der Dichter spricht (The Poet Speaks) - A kind of summing up of what has gone before, and very appropriately titled, for Schumann was a poet of tones. The music ends in the key of G major as it began with the first piece.
The last ten years of Mozart's life were spent in Vienna as a free-lance composer. He supported himself by teaching as well as composing. He wrote the last six of his piano sonata while in Vienna, and the piano sonata in C minor was dedicated to one of his students, Therese von Trattner, whose husband was a publisher in Vienna and Mozart's landlord.
I. Molto allegro - The sonata begins with the bare notes of a broken C minor chord in an upward direction, the first theme:
This was a device made popular by the orchestra in Mannheim, Germany, in the middle of the 18th century. This orchestra was highly disciplined and played music by composers such as Johann Stamitz and others that used new and novel effects such as extended crescendos, tremolos, and rapidly rising melodies. Mozart's opening of the sonata is an example of one of those rising motives that was called a Mannheim rocket. Beethoven knew Mozart's music very well from his early days in Bonn where he played some of the piano music as well as the viola in the court opera orchestra in Mozart's operas. Musicologists have thought Beethoven used this sonata as a model for his own Piano Sonata No. 8 in C minordue to similarities in key, structure and intensity.The second theme of the movement is in the relative key of E-flat major. The exposition is repeated. The short development section uses parts of the two themes in the keys of C major, F minor, and G minor before the recapitulation returns to the home key of C minor. Both themes are played in the home key. An agitated coda brings the movement to a close.
II. Adagio - The slow movement is in E-flat major:
The first section has the initial theme played through twice, with the second hearing being more decorated. The second section has a different theme that is played through twice with transitional material that leads back to the initial theme that is repeated in an even more decorated form. A coda finishes out the movement.
III. Allegro assai -Mozart changes the usual final movement of a sonata from fast and light to more serious and tense:
The first theme is in two distinct parts; the first part is quiet and creates an undercurrent of tension with the right hand having the first and third beats of the measure tied across the bar line. The second part of the theme i8s louder and with more passion. The second subject is in the major and is accompanied by an Alberti bass. The middle section is a short episode that leads back to the second theme that ushers back the first theme. A coda consists of material from the short episode and the movement ends in C minor.
