Original: The Piano Works of Rachmaninoff, Volume I. Lily Boulanger Memorial, Boston. Sergei Rachmaninoff. Piano Solo sheet music.
Oversettelse: Piano Works av Rachmaninoff, Volume I. Preludium i ciss-moll, Op. 3, nr. 2. Preludium i C-Sharp Minor, Op. 3 nr. 2. Avansert.