My ability on the alto is pretty limited, but I know from seeing Zorn and Masada around 1994 in Berlin from about four feet distance that he has (or had) good enough command of circular breathing to blow for a good minute and a half without taking a breath. Jerry John wrote Are there any other sax players out there (or anyone else for that matter) who can tell me about same of the extended techniques that Zorn utilises in his player. John