Bob, by coincidence, I just finished transcribing "Fancy Free", a 1969 Donald Byrd classic.

Dan, I agree with Bob on your question. I've seen about everything from "solo over the tune with all hits and chords" through "everybody play the blues in the middle" to "do whatever you feel". By definition, if the composer/arranger includes a separate sheet called "Blowing Changes", then I expect them to be different somehow from the regular song lead sheet. The difference is most often leaving out rhythmic ensemble hits, and/or simplifying the chord changes (often just because you aren't playing the rhythmic hits). But the difference can be a lot of things.

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