As listeners, we all know what the different musical instruments sound like….or at least we like to think so. Every once in a while though, a player will escape the tonal boundaries of his horn, making it sound like another one, or even like something we’ve never heard before. For example, Lester Young’s tenor saxophone, which seemed to come at the listener as a vapour through an invisible airshaft, sounding more like a French horn than a tenor. Fittingly, …