Made Easy for Piano, 4 Hands. By Amilcare Ponchielli; Anton Rubenstein; Claude Debussy; Frederic Chopin; Gioacchino Rossini; Igor Fyodorovich Stravinsky; Jacques Offenbach; Johann Strauss; Johannes Brahms; Ludwig Van Beethoven; Nikolai Rimsky-Korsakov; Richard Wagner; Robert Schumann. Arranged by John Brimhall. 1 piano, 4-hands. For Piano I, Piano II. Great Music Made Easy: Duet Series. Performance score. 63 pages. Published by Carl Fischer.

(A Graded Collection of Piano Duets by Master Composers). Edited by Gayle Kowalchyk, E. L. Lancaster, and Jane Magrath. For Piano. Book; Duet or Duo; Graded Standard Repertoire; Masterworks; Piano Duet (1 Piano, 4 Hands). Alfred Masterwork Edition: Masterwork Classics Duets. Masterwork; Recital. Advanced; Early Advanced. 88 pages. Published by Alfred Music

(Music by J. C. Bach, Beethoven, Brahms, Dvorák, and Mozart). Edited by Gayle Kowalchyk and E. L. Lancaster. For Piano. Book; Duet or Duo; Graded Standard Repertoire; Masterworks; Piano Duet (1 Piano, 4 Hands). Alfred Masterwork Edition: Essential Keyboard Repertoire. Masterwork; Recital. Advanced; Early Advanced. 170 pages. Published by Alfred Music Publishing

Beethoven Complete Edition, Abteilung VII, Vol. 1 Clothbound. Composed by Ludwig van Beethoven (1770-1827). Edited by Hans Schmidt. Henle Complete Edition. Classical. Hardcover. 100 pages. G. Henle #HN4232. Published by G. Henle (HL.51484232).