MINUS MELODY Gives the guitarist the opportunity to play both the melody and be the soloist with a piano/bass/drum accompaniment
MINUS PIANO Now the guitarist's role is to comp for the horn melody, comp for the horn or other soloists, and solo where the pianist originally soloed.
BASS & DRUMS ONLY Create your own arrangement for the melody and be the soloist.
FULL TRACKS Playing with the full recording gives you the job of figuring out how to add yourself effectively to the rhythm section, making it a four-piece rhythm section. This can be challenging, but it's a great skill for a guitarist.