For various 8-part brass ensembles. Trumpets in C or Bb. Substitute parts provided to swap horns for trombones. Part 7 is trombone or euphonium. Part 8 is bass trombone or tuba. Possible combinations include 404.00, 403.01, 402.11, 422.00, 421.01, 420.11, 413.00 and 412.01. Score 9in C) included. -cdp