Ludwig van Beethoven's Piano Concerto No. 1 in C major, Op. 15, was written in 1795, then revised in 1800. It was possibly first performed by Beethoven at his first public concert in Vienna on 29 March 1795. It was first published in 1801 in Vienna with dedication to his pupil Princess Anna Louise Barbara Odescalchi (née Countess von Keglević), known to her friends as "Babette".
Although this was Beethoven's first piano concerto to be published, it was actually his third attempt at the genre, following an unpublished piano concerto in E-flat major of 1784 and the Piano Concerto No. 2. The latter was published in 1801 in Leipzig after the Piano Concerto No. 1, but was composed over a period of years, perhaps beginning ca. 1788
- Allegro con brio (C major)
- Largo (A-flat major)
- Rondo. Allegro scherzando (C major)
As with the Piano Concerto No. 2, this C major concerto reflects Beethoven's assimilation of the styles of Mozart and Haydn, while its abrupt harmonic shifts demonstrate Beethoven's musical personality. It adheres to the concerto variant of sonata form and is scored for solo piano and an orchestra consisting of flute, 2 oboes, 2 clarinets, 2 bassoons, 2 horns, 2 trumpets, timpani, and strings. The flute, oboes, trumpets, and timpani are tacet during the second movement.
German pianist Wilhelm Kempff wrote his own cadenzas for both the first and last movements and played these in his various recordings of the work. Canadian pianist Glenn Gould also wrote his own cadenza, which was published by Barger and Barclay, and recorded for EMI in 1996 by Lars Vogt with the City of Birmingham Symphony Orchestra under Simon Rattle
