The question that sums it up is, "What does a decent jazz player do when a song is called that he/she doesn't know?" What SHOULD he or she do?In progressive jazz (at least), the usual structure is for the entire group to do a 'clean' (no embellishments) Head section (which we will call A). Then the bridge (which we can call B). Then individual soloists do their improv (embellished) sections on the A, and if there is time also the B. Sometimes, if the group is large, the A and B are split between 2 soloists. After this the band comes back in with a finalie, which is usually another clean A section.
Thanks in advance, Elizabeth (aka "Chrome Lizzie"?)