Hello Manny: I play a great deal of traditional Cuban dance music and normally have two types of playing scenarios. The first involves playing in 6-7 piece bands that play mainly acoustically and the solo trumpet is the only brass instument . The second scenario involves playing larger "salsa" type orchestras with 2 trumpets. trombone and Bari sax in the brass section. The volume of the playing seems to impact my playing skills more than it should. In the smaller band I will play a 2 hour set and feel like I just warmed up. While in the larger band I start to feel tired very prematurely in the first set! Since the main differance in the two types of playing is the sheer volume, I was wondering how you prepare for work that involves playing at large volumes for an extended period . Thank you for taking your time to help us out!