The title of this post is a question every tenor saxophonist asks himself or herself at some point, and I think it belongs on a T-shirt. I’d buy a few of them for myself, to be sure! Anyway, what led me to come up with this expression is that my homework this week in my Jazz Improvisation course at Coursera involved recording the head (the pre-existing melody) and one chorus of (imporvised) solo on Keith Jarrett’s tune, “Memories of Tomorrow.” I actually have a relationship with this tune going back to high school: my saxophone teacher at the time, Mike …