I'm a sax beginner, and my teacher is currently trying to teach me to pick the right scales to improvise over a tune. In the lesson I played Blues scales over a simple 12 bar blues backing track he had, but at the end of the lesson he told me to go away and practice with Freddie Freeloader using my Aebersold CD for backing. Here's the thing, the blues scale sounded great against the 12 bar blues track when I was with my teacher, but it sounds terrible (really awful) when I try it against Freddie Freeloader at home (eg when the bar is C7 I'm told to improvise using the Blues scale in C, etc). Is it me or the scale? What am I doing wrong?
I'd really appreciate some simple pointers because it's driving me nuts!