Thanks, gents - your posts turned this into a really good thread. Ally, SL, Jud, Tony, all - I do see the other side of the discussion. I won't argue against it. But SL's mention of the big bands is even a better analogy than the one I used: listen to a good Benny Goodman tune, especially a live recording of the whole big band: the arrangement is good but nothing to write home about, the ensemble work is tight and very good but nothing you've not heard from many other bands....and then Benny comes in with a searing, driving, joyously flamboyant solo that cuts through everything else and raises the temperature of the band and of the room and lights it up -- giving the whole enterprise a new purpose.
Anyway, thanks again - interesting thoughts.
Peter