Translation: Concerto for Piano No. 1 in B-flat, Op. 23 composed by Peter Ilyich Tchaikovsky. Study Scores. 1840-1893.
Translation: Concert Fantasy, Op 56. Fantasie de Concert, Op. 56 composed by Peter Ilyich Tchaikovsky. Full score.
Translation: The melody comes from a section of Tchaikovsky's 'Nutcracker' ballet, and was long in the public domain when the setting was written.
Translation: composed by Peter Ilyich Tchaikovsky. Full score. 13a and 13b of Tchaikovskys Complete Works.