The Piano Concerto No 1 in B-Flat Minor, Op. 23, was composed by Pyotr Ilyich Tchaikovsky between November 1874 and February 1875. It was revised in the summer of 1879 and again in December 1888.
Beethoven’s most popular composition for piano was not published during his lifetime, only being discovered (by Ludwig Nohl) forty years after his death.
