These exercises are from Arnold Jacobs' Special Studies for the Tuba (and Euphonium) and includes the Beautiful Sounds exercise, his Scale Studies exercise and his Development of Low Register and Resonance exercise.

The Beautiful Sounds exercise is available in Major and Minor.

The Scale Studies are available in 3 tempi [80, 100, and 120 BPM] and take the player through all 12 major keys and utilize a variety of articulation patterns (that were added by the creator of these backing tracks, Dr. Brett Copeland).

The Development of Low Register and Resonance is available in few different keys, starting with the original key for the exercise of Eb, and is expanded up to F# and down to C.