Simulate fingerings for true practice of most of the valve brass instruments, in any of 12 keys. Random notes are presented in the selected key, or select scales or Arban-style exercises. Learn mode (shows fingerings) and drill mode. Reference lookup of all notes in all 12 keys. Alternate fingerings included and accepted. Trumpet, euphonium, baritone, b-flat and e-flat tuba, french horn. 3-valve, 4-valve, and 3+1 valve configurations.