Ave verum corpus is a motet written by Mozart for Anton Stoll, the musical coordinator in the parish of Baden bei Wien, near Vienna. Composed to celebrate the feast of Corpus Christi; the autograph is dated 17 June 1791, than six months to the date of Mozart's death. It is only forty-six bars long and is scored for SATB choir, string instruments, and organ. Mozart's manuscript itself contains minimal directions, with only a single sotto voce at the beginning. It is said that it foreshadows some aspects of the Requiem. Franz Liszt quotes Mozart's motet in the piano piece Evocation à la Chapelle Sixtine. Pyotr Ilyich Tchaikovsky incorporates an orchestration of Liszt's transcription in his fourth orchestral suite, Mozartiana, Op. 61.