Hancock was recognized as a "Jazz Master" by the National Endowment for the Arts in 2004. His bio on the NEA website states: "Herbie Hancock's talent as a pianist was evident when, at age 11, he performed Mozart's D Major Piano Concerto with the Chicago Symphony Orchestra."
At the age of 4-5 he wrote and played his first piece on the piano.
Mozart composed his first piano concerto before his teens. His first four compositions of the genre were rearrangements from other works. His first original concerto: concerto 5 in D, K 175 was composed in 1773 (at age 17).
Medkue
Piano, flute, 2 clarinets, 2 bassoons, 2 French horns, and strings.
Which composer? Mozart's concerto no. 23 in A has its second theme in E major, and in the recapitulation it returns in A major. Schumann's concerto in A minor has its second theme in C major, returning in A major for the recapitulation.
Most likely Mozart ... especially since the letter "k" is in the question. "K" stood for Koechel, the person who cataloged every piece Mozart wrote and assigned each composition its own unique number.
Mozart composed his first piano concerto before his teens. His first four compositions of the genre were rearrangements from other works. His first original concerto: concerto 5 in D, K 175 was composed in 1773 (at age 17).
Medkue
Mozart's Piano Concerto No. 5, Mvt. 1.
Piano, flute, 2 clarinets, 2 bassoons, 2 French horns, and strings.
Mozart's Piano Concerto No. 23
Prokofiev
Mozart, piano concerto 23. II Adagio
Mozart composed about 600 works in his lifetime, including choral, organ, piano, violin, quartet, and more.
Which composer? Mozart's concerto no. 23 in A has its second theme in E major, and in the recapitulation it returns in A major. Schumann's concerto in A minor has its second theme in C major, returning in A major for the recapitulation.
Most likely Mozart ... especially since the letter "k" is in the question. "K" stood for Koechel, the person who cataloged every piece Mozart wrote and assigned each composition its own unique number.
Only considering attested works, the number is 44 with the following distribution: piano (27), violin (5), horn (4), flute (1), bassoon (1), harp and flute (1), oboe (1), clarinet (1) for a total of 41 to which we can add 3 more: 1 sinfonian concertante for violin and viola 1 sinfonia concertante for oboe, clarinet, horn and bassoon 1 flute concerto (arrangement of bassoon concerto)
The asker did not specify a composer, but I'm going to assume that he/she meant Mozart, as he is the only composer still famous today to have written so many piano concerti. He wrote his twenty-first, like most of his piano concerti, for himself to perform. It was written in the space of only four weeks, immediately following the premiere of his great D minor concerto, the twentieth--the two are one of his many pairs of great works of antithetical temperaments, something Mozart seemed to enjoy challenging himself to do.