The two distinguishing features here are the use of the 7/8 time signature, and the different motion of the harmonies. The arpeggios move in different patterns and the result is that the interval between the notes changes every time. The idea was to create a web of sound where the two parts merge into each other.
In this lesson we will learn one of the most played jazz and gypsy jazz standards - CARAVAN. You will learn how to play the main theme as well as the improvisation over the chord changes . It is full of useful licks that you can use in your jazz vocabulary. Have fun.