This one is based on Reinhardt's Minor Swing. The original thread: http://www.strat-talk.com/threads/improv-challenge-111-be-a-gypsy-mess-with-the-zoltan.350288/ The backing track: My takes from the original challenge: Lo-Fi Hi-Fi Here's the challenge: You can go for the original head/melody if you want to, but to really challenge yourself, come up with your own melody/head. This is called a contrafact: creating a new melody over an existing chord progression. (Chords are in the original thread. Read it. ) One of the most famous contrafacts I can think of is the Star Trek theme (TOS). It's a contrafact of the standard Out Of Nowhere. Another is Coltrane's Lazy Bird that's based on Tadd Dameron's Lady Bird. So...write a melody. A refrain. Stick a little solo in the middle, and return to the head that you've created. Don't play licks. Play melodically. Like most of these, fit into the ensemble. Play something that fits stylistically and musically with the "band". This means don't shoehorn Purple Haze or Enter Sandman tones in there. Have fun!