Nadia said:yes it is written for 4 trombones, (and 2 flugals). I think the percussion would have been managable with 3 but we were using 4 for the set test anyway so would have been a bit unfair to drop someone.
Anglo Music Press said:When it's published, it will have the normal three.
Anglo Music Press said:Because doing a version that will work with just three means rescoring the extra part into the rest of the band. It's not feasible just to have an 'extra' trombone part, I'm afraid.