Alfred Music Publishing Jazz Duets for Saxophon, Songbook for Saxophone, 18 Jazz duets for Eb and Bb saxophone, By Eskovitz Bruce und Watts Ernie, With practice duets before each piece, Intermediate level of difficulty, ISBN 9780739032800, publisher's no. ALF 00-20867, Format: 23 x 30 cm, 59 Pages, incl. download with demo recordings