It's definitely been a little static for a while now - but it often depends who's playing with him. There was a time when I was working with him a lot in the mid-80s when he might play anything. Suffice to say he never announces the tune beforehand. Neither does he count off a tempo. He just starts and everyone falls in line. I learned a lot of tunes on the bandstand with Lou! I remember a gig in Connecticut (Jamil Nasser on bass) when after about eight bars he turned to me and said in that high pitch, "You don't know that, man?" He was playing the tune "You." After one or two choruses I did. One of the best training grounds in jazz. I was fortunate to cut my teeth with Lou, Junior Cook, George Coleman, Bill Hardman, Slide, Clifford Jordan. Young players coming up today rarely get that kind of training anymore.