Practice with Bach - Vol.5 Ralph Sauers landmark new work, Practice With Bach for the Bass Trombone, Volume V, will challenge your technique and musicality with demanding new études. Based on the keyboard works of J. S. Bach, each of the Five Volumes is available in five different versions--Alto Trombone, Tenor Trombone, Bass Trombone, Euphonium, and Tuba. Each version is customized for the individual instrument (choice of key, range, ornaments, etc.). This version can also be used by Tenor Trombonists to work on their low register. Volume Five contains Twenty-four études based upon the Six English Suites (BWV 806-811).