Piano Sonata No. 14 (Mozart)
Encyclopedia
The Piano Sonata No. 14 in C minor
C minor
C minor is a minor scale based on C, consisting of the pitches C, D, E, F, G, A, and B. The harmonic minor raises the B to B. Changes needed for the melodic and harmonic versions of the scale are written in with naturals and accidentals as necessary.Its key signature consists of three flats...

, K.
Köchel-Verzeichnis
The Köchel-Verzeichnis is a complete, chronological catalogue of compositions by Wolfgang Amadeus Mozart which was originally created by Ludwig von Köchel. It is abbreviated K or KV. For example, Mozart's Requiem in D minor was, according to Köchel's counting, the 626th piece Mozart composed....

 457, by Wolfgang Amadeus Mozart
Wolfgang Amadeus Mozart
Wolfgang Amadeus Mozart , baptismal name Johannes Chrysostomus Wolfgangus Theophilus Mozart , was a prolific and influential composer of the Classical era. He composed over 600 works, many acknowledged as pinnacles of symphonic, concertante, chamber, piano, operatic, and choral music...

 was composed and completed in 1784, with the official date of completion recorded as October 14, 1784 in Mozart’s private catalogue of works. It was published in December of 1785 together with the Fantasy in C minor, K. 475, as Opus 11 by the publishing firm Artaria
Artaria
Artaria and company was one of the most important music publishing firms of the late 18th and 19th century. Founded in the 18th century in Vienna, the company is associated with many leading names of the classical era.- History :...

, Mozart’s main Viennese publisher.

The title page bore a dedication to Thérèse von Trattner, who was one of Mozart’s pupils in Vienna. Her husband was an important publisher as well as Mozart’s landlord at the time. Eventually, the Trattners would become godparents to four of Mozart’s children.

The sonata was composed during the approximately 10-year period of Mozart’s life as a freelance artist in Vienna after he removed himself from the patronage of the Archbishop of Salzburg in 1781. It is one of the earliest of only six sonatas composed during the Vienna years, and was probably written either as a teaching tool or for personal use. Sonatas during this time were generally written for the domestic sphere - as opposed to a symphony or concerto, they were designed to convey ideas in a small, intimate setting.

A typical performance takes about 18 minutes.

Movements

The work has three movements:
  • I. Molto allegro
  • II. Adagio
  • III. Allegro assai

I. Molto allegro

The first movement is written in sonata form. It begins with a fiery Mannheim rocket figure
Mannheim school
Mannheim school refers to both the orchestral techniques pioneered by the court orchestra of Mannheim in the latter half of the 18th century as well as the group of composers who wrote such music for the orchestra of Mannheim and others.-History:...

, which appears twice in the first subject, or theme, which makes up m.1 - m. 19. The second subject, which is written in E-flat major, the relative major of C-minor
Key (music)
In music theory, the term key is used in many different and sometimes contradictory ways. A common use is to speak of music as being "in" a specific key, such as in the key of C major or in the key of F-sharp. Sometimes the terms "major" or "minor" are appended, as in the key of A minor or in the...

, first appears in m.23- m.71.The exposition begins transitioning at m. 71 to the development, which spans m.75 to m. 99. This portion of the sonata is the most unstable harmonically, running through both F minor and G minor before returning to C-minor. The recapitulation occurs from m.100 to m. 168, this time the second subject is in c minor instead of the E-flat major of the exposition, and the coda ends the piece from m. 168 to m. 185.

II. Adagio

The slow movement is written in rondo form and in E-flat major. It is graceful and tranquil and provides a strong contrast with the first and third movements. The principal theme, or the A subject, occurs from m.1 - m.7. The overall form of the movement is ABACA, with a coda at the end from m. 47 to m. 57.

III. Allegro assai

The third movement returns to the dramatic quality of the first movement. It is written in sonata-rondo form
Sonata rondo form
Sonata rondo form was a form of musical organization often used during the Classical music era. As the name implies, it is a blend of sonata form and rondo form.- Structure :...

. The first subject in the tonic is quite long, and first appears from m.1 to m. 44, then links to the second subject in E-flat major, which appears from m. 47 to m.96. The principal subject returns in incomplete form from m.103 to m.145, and also provides a link to the next section. In sonata form, it would be called the development. However, it is fairly short, only running from m. 146 to m. 166, and could be simply termed an episode.

The episode leads to the recapitulation, which begins with a modified second subject in E-flat major. Subsequently, the principal subject returns in the tonic, and portions of the episode return from m. 275 to m. 287 before the coda at the end from m.288 to m.319. The piece finishes with two dramatic chords.

Relation of the Fantasy to the Sonata

The Fantasy in C minor, K. 475, was completed some seven months after the C minor sonata. Mozart recorded the date of completion as May 20, 1785 in his private catalogue of works. Opinions have differed whether Mozart intended the two to be performed together. Although they were published together as the same opus, Mozart sometimes performed the pieces separately.

The Fantasy has by nature a more improvisational quality than the subsequent sonata, and the pairing presents a classical correlation to the baroque combination of fantasy and fugue. Both the fantasy and sonata are linked by a focus on the bass register and octaves in the bass clef. The styles of both Muzio Clementi
Muzio Clementi
Muzio Clementi was a celebrated composer, pianist, pedagogue, conductor, music publisher, editor, and piano manufacturer. Born in Italy, he spent most of his life in England. He is best known for his piano sonatas, and his collection of piano studies, Gradus ad Parnassum...

 and C. P. E. Bach have been suggested to have influenced the composition of the fantasy, whether consciously or subconsciously.

Significance of the key

The Piano Sonata No. 14 in C minor is only one of two sonatas Mozart wrote in the minor key, the other being the great Piano Sonata No. 8 in A minor, K. 310
Piano Sonata No. 8 (Mozart)
Wolfgang Amadeus Mozart's Piano Sonata No. 8 in A minor, K. 310/300d, written in 1778 is a sonata in three movements:#Allegro maestoso, common time#Andante cantabile con espressione, F major, 3/4#Presto, 2/4A typical performance takes about 22 minutes....

, which was written six years earlier, around the time of the death of Mozart's mother. Mozart was extremely deliberate in choosing tonalities for his compositions; therefore, his choice of C minor for this sonata implies that this piece was perhaps a very personal work.

Rediscovered autograph

An original autograph of the two pieces was rediscovered in 1990 at the Eastern Baptist Theological Seminary
Palmer Theological Seminary
Palmer Theological Seminary was founded in 1925 as Eastern Baptist Theological Seminary. Originally located on Rittenhouse Square in Philadelphia, Pennsylvania, USA, it moved in 1940 to its present location in Wynnewood, Pennsylvania, just across the street from the city boundary...

 in Philadelphia by Judith DiBona, an amateur pianist and Accounting Manager at Eastern’s sister school. Eugene K. Wolf at the University of Pennsylvania was contacted to identify and authenticate the manuscripts. He emerged with findings concerning the time of composition between the movements of the sonata and the fantasy, which were published in The Journal of Musicology in 1992. First, his findings further confirmed that the Fantasy and Sonata were written independently due to differences of stave spans, paper-types, and even ink color in between the two manuscripts.

Wolf also found differences in paper types between the first and third movements of the sonata and the second Adagio movement, which implies that the second movement was written down at a separate time from the rest of the sonata. He theorizes that the second movement was composed the earliest as an instructional piece for Thérèse von Trattner. Since the second movement is in rondo form and slower than the others, it could exist independently from the sonata more easily than the other movements.

Relation to Beethoven's "Pathétique"

Of this sonata Köchel
Köchel
Köchel, Koechel is surname of:* Ludwig Alois Ferdinand Ritter von Köchel , composer, musicologist, botanist, writer* Köchel catalogue...

 said “Without question this is the most important of all Mozart’s pianoforte sonatas. Surpassing all the others by reason of the fire and passion which, to its last note, breathe through it, it foreshadows the pianoforte sonata, as it was destined to become in the hands of Beethoven.”

Indeed, Mozart's sonata feels in several ways prophetic of Beethoven's great C minor sonata Piano Sonata No. 8 in C minor, "Pathétique"
Piano Sonata No. 8 (Beethoven)
Ludwig van Beethoven's Piano Sonata No. 8 in C minor, Op. 13, commonly known as Sonata Pathétique, was written in 1798 when the composer was 27 years old, and was published in 1799. Beethoven dedicated the work to his friend Prince Karl von Lichnowsky...

(which it predates by roughly fifteen years), and both works share a similar overall plan. Listeners will note that Mozart's theme in his spacious second movement is remarkably similar to that which Beethoven used in his own "Adagio cantabile" second movement.

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