I ain't all bad in this category either and I don't recall anything.....That's not to say it didn't exist at some point. A lot of tunes were pretty one off and improvisational too so the author may have heard something announced that way at a particular time that suited the performance. We played a gig one night for an outdoor party that turned really cold. We swapped shoruses on the same tune ("When Sonny Gets Blue") for about 20 minutes and when asked the name, one of the guys said it was "Blues for Cold Fingers."Spaw