Piano Duets & Four Hands - Digital Download SKU: AX.00-PC-0009181 Op. 140, Grand Duo (Sonate). Composed by Franz Schubert. Classical. Part. 44 pages. Alfred Music - Digital Sheet Music #00-PC-0009181. Published by Alfred Music - Digital Sheet Music (AX.00-PC-0009181). ISBN 9780769279466. UPC: 029156678741.Op. 107, 121, 138, 140. The comb binding creates a lay-flat book that is perfect for study and performance.