paragraph_text: Wolfgang Amadeus Mozart died after a short illness on 5 December 1791, aged 35. His reputation as a composer, already strong during his lifetime, rose rapidly in the years after his death, and he became (as he has remained to this day) one of the most celebrated of all composers.

paragraph_text: The Tasmanian Symphony Orchestra was established in 1948, and gave its first concert on 25 May in the Hobart Town Hall, under the baton of Joseph Post. The soloist was the Tasmanian-born pianist Eileen Joyce, who performed the Piano Concerto in A minor by Edvard Grieg.

paragraph_text: Back in Warsaw that year, Chopin heard Niccolò Paganini play the violin, and composed a set of variations, Souvenir de Paganini. It may have been this experience which encouraged him to commence writing his first Études, (1829–32), exploring the capacities of his own instrument. On 11 August, three weeks after completing his studies at the Warsaw Conservatory, he made his debut in Vienna. He gave two piano concerts and received many favourable reviews—in addition to some commenting (in Chopin's own words) that he was "too delicate for those accustomed to the piano-bashing of local artists". In one of these concerts, he premiered his Variations on Là ci darem la mano, Op. 2 (variations on an aria from Mozart's opera Don Giovanni) for piano and orchestra. He returned to Warsaw in September 1829, where he premiered his Piano Concerto No. 2 in F minor, Op. 21 on 17 March 1830.

paragraph_text: Improvisation stands at the centre of Chopin's creative processes. However, this does not imply impulsive rambling: Nicholas Temperley writes that "improvisation is designed for an audience, and its starting-point is that audience's expectations, which include the current conventions of musical form." The works for piano and orchestra, including the two concertos, are held by Temperley to be "merely vehicles for brilliant piano playing ... formally longwinded and extremely conservative". After the piano concertos (which are both early, dating from 1830), Chopin made no attempts at large-scale multi-movement forms, save for his late sonatas for piano and for cello; "instead he achieved near-perfection in pieces of simple general design but subtle and complex cell-structure." Rosen suggests that an important aspect of Chopin's individuality is his flexible handling of the four-bar phrase as a structural unit.

paragraph_text: These concertos remained unpublished in the Alte Mozart-Ausgabe, the first complete edition of Mozart's works, so they were not given a number by the publishers of that edition, Breitkopf & Härtel (as the other 27 concerti were given in that publication). Therefore, when these works are enumerated with the rest, it can be seen that Mozart composed 30 keyboard concerti. These three works, however, and the concerti numbered as Piano Concertos 1 through 4 are actually not original compositions, but arrangements of works by other composers.

paragraph_text: In his native Poland, in France, where he composed most of his works, and beyond, Chopin's music, his status as one of music's earliest superstars, his association (if only indirect) with political insurrection, his love life and his early death have made him, in the public consciousness, a leading symbol of the Romantic era. His works remain popular, and he has been the subject of numerous films and biographies of varying degrees of historical accuracy.

paragraph_text: Jacques Février was born in Saint-Germain-en-Laye, the son of the composer Henry Février. He studied with Édouard Risler and Marguerite Long at the Conservatoire de Paris, taking a "premier prix" in 1921. In 1932 he and the composer were the soloists in the first performance of Francis Poulenc's Concerto for two pianos. Although Paul Wittgenstein premiered Maurice Ravel's Concerto for the Left Hand, Février was expressly chosen by the composer to be the first French pianist to perform the work. He made many recordings of the French repertoire, receiving a Grand Prix du Disque of the Charles Cros Academy in 1963 for his recording of Ravel's piano works.

paragraph_text: Disma Fumagalli (born Inzago, 8 September 1826 - died Milan, 9 March 1893) was an Italian composer and teacher of music. He was a graduate of the Milan Conservatory, where he began teaching piano in 1853. He composed more than 300 études for piano, as well as other exercises; he also wrote a concerto for piano and string orchestra.

paragraph_text: ``All by Myself ''is a song by American artist Eric Carmen released in 1975. The verse is based on the second movement (Adagio sostenuto) of Sergei Rachmaninoff's Piano Concerto No. 2 in C minor, Opus 18. The chorus is borrowed from the song`` Let's Pretend'', which Carmen wrote and recorded with the Raspberries in 1972.

paragraph_text: Johanna Senfter was born and died in Oppenheim. From 1895 she studied composition under Iwan Knorr, violin under Adolf Rebner, piano under Karl Friedberg and organ at the Hoch Conservatory in Frankfurt am Main. This gave her a considerable amount of musical training when in 1908 she became a student of Max Reger in Leipzig. She composed nine symphonies, 26 orchestral works and concertos for piano, violin, viola, and cello. Senfter was a masterful composer of fugue. Altogether she left behind 134 works.

paragraph_text: Over 230 works of Chopin survive; some compositions from early childhood have been lost. All his known works involve the piano, and only a few range beyond solo piano music, as either piano concertos, songs or chamber music.

paragraph_text: The daughter of pianist Emil Gilels, Elena Gilels studied at the Moscow Conservatory under Vera Gornostayeva and Yakov Flier, then with Pavel Serebryakov at the Leningrad Conservatory. Her repertoire focused on the works of Haydn, Beethoven, Mendelssohn, Chopin, Liszt, Schumann, Mussorgsky, Tchaikovsky, Rachmaninoff and Prokofiev. Elena Gilels is perhaps best remembered for her performances of Mozart's piano concertos. She frequently performed with her father Emil Gilels, with whom she recorded Mozart's Concerto for Two Pianos, KV. 365.

paragraph_text: The Piano Concerto/MGV is the 23rd album by Michael Nyman, released in 1994. It contains two compositions, "The Piano Concerto" and "MGV". The first is performed by Kathryn Stott and the Royal Liverpool Philharmonic Orchestra conducted by Michael Nyman, and the second is performed by the Michael Nyman Band and Orchestra with Michael Nyman at the piano.

paragraph_text: "Seasons of Love" is a song from the Broadway musical "Rent", written and composed by Jonathan Larson. The song starts with an ostinato piano motif, which provides the harmonic framework for the cast to sing "Five hundred twenty-five thousand, six hundred minutes" (the number of minutes in a common year [60 minutes × 24 hours × 365 days]). The main instruments used throughout the song are piano, vocals, guitar, organ, bass and drums.

paragraph_text: Donald James Winslow (1911 – 10 July 2010) was a professor at Boston University in Boston, United States who specialized in the subject of biography.

paragraph_text: The Witch is a ballet made by John Cranko to Maurice Ravel's Piano Concerto No. 2 in G Major (1931). The premiere took place Friday, 18 August 1950 at the Royal Opera House, Covent Garden, London.

paragraph_text: The International Who's Who in Music is a biographical dictionary and directory originally published by the International Biographical Centre located in Cambridge, England. It contains only biographies of persons living at the time of publication and includes composers, performers, writers, and some music librarians. The biographies included are solicited from the subjects themselves and generally include date and place of birth, contact information as well as biographical background and achievements.

paragraph_text: Wolfgang Amadeus Mozart's Piano Sonata No. 6 in D major, K. 284 / 205b, (1775) is a sonata in three movements:

paragraph_text: Structures I (1952) and Structures II (1961) are two related works for two pianos, composed by the French composer Pierre Boulez.

paragraph_text: 920 Biography & genealogy 920 Biography, genealogy, insignia 921 - 928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name. 929 Genealogy, names, insignia

Question: What is the main subject of biographies of the composer of Piano Concerto K. 107?
Answer: Wolfgang Amadeus Mozart