Intermediate/Advanced. These tunes represent a large portion of the jazz player's vocabulary and all are considered jazz standards. Songs range from simple to complex, slow tempos to fast. The chord changes on several tunes are such that even the novice improviser can solo usiusing a single scale such as the blues or pentatonic, yet intermediate and advanced players will have plenty of challenge playing on the flowing and natural chord changes. Others present a greater challenge, with fast tempos, 3/4 time signatures and alternating grooves.