45 Teacher/Student Selections in Their Original Form. Edited by Gayle Kowalchyk and E. L. Lancaster. Book; Duet or Duo; Graded Standard Repertoire; Masterworks; Piano Duet (1 Piano, 4 Hands). Alfred Masterwork Edition: Essential Keyboard Repertoire. 20th Century; Classical; Masterwork; Recital; Romantic. 160 pages. Published by Alfred Music