This sheet music is a free resource created for you by Presidio Brass. Currently, it is for all brass instruments, but in the future will include woodwind instruments as well. Everything is here for the developing musician, including routines, intonation exercises, rhythmic exercises, and more. The exercises for intonation and rhythm are for multiple players, and can be mixed and matched with similar instruments (two trumpets, etc.) or different instruments (trumpet and tuba, horn and trombone, etc.).
The whole idea is to learn and make music together. So, grab a friend, download some music and get playing!
If you don’t have Adobe Acrobat Reader, you can download it here.