Piano Concerto No. 20 (Mozart)
Encyclopedia
The Piano Concerto No. 20 in D minor
D minor
D minor is a minor scale based on D, consisting of the pitches D, E, F, G, A, B, and C. In the harmonic minor, the C is raised to C. Its key signature has one flat ....

, K. 466, was written 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...

 in 1785. The first performance took place at the Mehlgrube Casino in Vienna
Vienna
Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

 on February 11, 1785, with the composer as the soloist.

Background

A few days after the first performance, the composer's father, Leopold
Leopold Mozart
Johann Georg Leopold Mozart was a German composer, conductor, teacher, and violinist. Mozart is best known today as the father and teacher of Wolfgang Amadeus Mozart, and for his violin textbook Versuch einer gründlichen Violinschule.-Childhood and student years:He was born in Augsburg, son of...

, visiting in Vienna, wrote to his daughter Nannerl
Maria Anna Mozart
Maria Anna Walburga Ignatia Mozart , nicknamed "Nannerl", was a musician, the older sister of Wolfgang Amadeus Mozart and daughter of Leopold and Anna Maria Mozart.-Childhood:...

 about her brother's recent success: "[I heard] an excellent new piano concerto by Wolfgang, on which the copyist was still at work when we got there, and your brother didn't even have time to play through the rondo because he had to oversee the copying operation."

It is written in the key
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...

 of D minor
D minor
D minor is a minor scale based on D, consisting of the pitches D, E, F, G, A, B, and C. In the harmonic minor, the C is raised to C. Its key signature has one flat ....

. Other works by the composer in that key include the Fantasia K. 397
Fantasia No. 3 (Mozart)
Fantasia No. 3 in D minor, K. 397 is a piece of music for solo piano composed by Wolfgang Amadeus Mozart in 1782. Despite being unfinished at Mozart's death, the piece is nonetheless one of his more popular compositions for the piano...

 for piano, Requiem
Requiem (Mozart)
The Requiem Mass in D minor by Wolfgang Amadeus Mozart was composed in Vienna in 1791 and left unfinished at the composer's death. A completion by Franz Xaver Süssmayr was delivered to Count Franz von Walsegg, who had anonymously commissioned the piece for a requiem Mass to commemorate the...

, a Kyrie
Kyrie
Kyrie, a transliteration of Greek κύριε , vocative case of κύριος , meaning "Lord", is the common name of an important prayer of Christian liturgy, which is also called the Kýrie, eléison ....

, and parts of the dark opera Don Giovanni
Don Giovanni
Don Giovanni is an opera in two acts with music by Wolfgang Amadeus Mozart and with an Italian libretto by Lorenzo Da Ponte. It was premiered by the Prague Italian opera at the Teatro di Praga on October 29, 1787...

. It is the first of two concertos written in a minor key (No. 24
Piano Concerto No. 24 (Mozart)
The Piano Concerto No. 24 in C minor, K. 491 is a concertante work for piano, or pianoforte, and orchestra by Wolfgang Amadeus Mozart. Mozart composed the concerto in the winter of 1785–1786 and completed the work on 24 March 1786...

 being the other).

The young Ludwig van Beethoven
Ludwig van Beethoven
Ludwig van Beethoven was a German composer and pianist. A crucial figure in the transition between the Classical and Romantic eras in Western art music, he remains one of the most famous and influential composers of all time.Born in Bonn, then the capital of the Electorate of Cologne and part of...

 admired this concerto and kept it in his repertoire. Famed conductor Daniel Barenboim
Daniel Barenboim
Daniel Barenboim, KBE is an Argentinian-Israeli pianist and conductor. He has served as music director of several major symphonic and operatic orchestras and made numerous recordings....

 contends that this concerto was Joseph Stalin
Joseph Stalin
Joseph Vissarionovich Stalin was the Premier of the Soviet Union from 6 May 1941 to 5 March 1953. He was among the Bolshevik revolutionaries who brought about the October Revolution and had held the position of first General Secretary of the Communist Party of the Soviet Union's Central Committee...

's favorite piece of music. Cadenzas for this popular concerto written by famous composers include Beethoven (WoO 58), Johannes Brahms
Johannes Brahms
Johannes Brahms was a German composer and pianist, and one of the leading musicians of the Romantic period. Born in Hamburg, Brahms spent much of his professional life in Vienna, Austria, where he was a leader of the musical scene...

 (WoO 16), Johann Nepomuk Hummel
Johann Nepomuk Hummel
Johann Nepomuk Hummel or Jan Nepomuk Hummel was an Austrian composer and virtuoso pianist. His music reflects the transition from the Classical to the Romantic musical era.- Life :...

, Feruccio Busoni and Clara Schumann
Clara Schumann
Clara Schumann was a German musician and composer, considered one of the most distinguished pianists of the Romantic era...

.

Movements

The concerto is scored for solo piano
Piano
The piano is a musical instrument played by means of a keyboard. It is one of the most popular instruments in the world. Widely used in classical and jazz music for solo performances, ensemble use, chamber music and accompaniment, the piano is also very popular as an aid to composing and rehearsal...

, flute
Flute
The flute is a musical instrument of the woodwind family. Unlike woodwind instruments with reeds, a flute is an aerophone or reedless wind instrument that produces its sound from the flow of air across an opening...

, two oboe
Oboe
The oboe is a double reed musical instrument of the woodwind family. In English, prior to 1770, the instrument was called "hautbois" , "hoboy", or "French hoboy". The spelling "oboe" was adopted into English ca...

s, two bassoon
Bassoon
The bassoon is a woodwind instrument in the double reed family that typically plays music written in the bass and tenor registers, and occasionally higher. Appearing in its modern form in the 19th century, the bassoon figures prominently in orchestral, concert band and chamber music literature...

s, two horn
Horn (instrument)
The horn is a brass instrument consisting of about of tubing wrapped into a coil with a flared bell. A musician who plays the horn is called a horn player ....

s, two trumpet
Trumpet
The trumpet is the musical instrument with the highest register in the brass family. Trumpets are among the oldest musical instruments, dating back to at least 1500 BCE. They are played by blowing air through closed lips, producing a "buzzing" sound which starts a standing wave vibration in the air...

s, timpani
Timpani
Timpani, or kettledrums, are musical instruments in the percussion family. A type of drum, they consist of a skin called a head stretched over a large bowl traditionally made of copper. They are played by striking the head with a specialized drum stick called a timpani stick or timpani mallet...

 and string
String section
The string section is the largest body of the standard orchestra and consists of bowed string instruments of the violin family.It normally comprises five sections: the first violins, the second violins, the violas, the cellos, and the double basses...

s. As is typical with concerto
Concerto
A concerto is a musical work usually composed in three parts or movements, in which one solo instrument is accompanied by an orchestra.The etymology is uncertain, but the word seems to have originated from the conjunction of the two Latin words...

s, it is in three movement
Movement (music)
A movement is a self-contained part of a musical composition or musical form. While individual or selected movements from a composition are sometimes performed separately, a performance of the complete work requires all the movements to be performed in succession...

s:
  1. Allegro
  2. Romanze
  3. Allegro assai


The first movement starts off the concerto in the dark tonic key of D minor with the strings restlessly but quietly building up to a full forte. The theme is quickly taken up by the piano soloist and developed throughout the long movement. A slightly brighter mood exists in the second theme, but it never becomes jubilant. The timpani further heightens the tension in the coda before the cadenza. The movement ends on a quiet note.

The 'Romanze' second movement is a five-part rondo (ABACA) with a coda that begins brightly with a strong B-flat major melody. The second episode (part C) is galloping section in the relative minor key of G minor
G minor
G minor is a minor scale based on G, consisting of the pitches G, A, B, C, D, E, and F. For the harmonic minor scale, the F is raised to F. Its relative major is B-flat major, and its parallel major is G major....

 which greatly contrasts the peaceful mood of the rest of the movement.

The final movement, a rondo, begins with the solo piano rippling upward in the home key before the full orchestra replies with a furious section. (This piano "rippling" is known as the Mannheim Rocket
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:...

 and is a string of eighth notes (d-f-a-d-f) followed by a quarter note (a). A second melody is touched upon by the piano where the mood is still dark but strangely restless. A contrasting cheerful melody in F major
F major
F major is a musical major scale based on F, consisting of the pitches F, G, A, B, C, D, and E. Its key signature has one flat . It is by far the oldest key signature with an accidental, predating the others by hundreds of years...

 ushers in not soon after, introduced by the orchestra before the solo piano rounds off the lively theme. A series of sharp piano chords snaps the bright melody and then begin passages in D minor on solo piano again, taken up by full orchestra. Several modulations of the second theme (in A minor and G minor) follow. Thereafter follows the same format as above, with a momentary pause for introducing the customary cadenza. After the cadenza, the mood clears considerably and the bright happy melody is taken up this time by the winds. The solo piano repeats the theme before a full orchestral passage develops the passage and thereby rounding up the concerto with a jubilant D major
D major
D major is a major scale based on D, consisting of the pitches D, E, F, G, A, B, and C. Its key signature consists of two sharps. Its relative minor is B minor and its parallel minor is D minor....

finish.

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