Barry,
Great lesson! I just starting playing along and my ear wants to go to B Alt in the 2nd and 4th bar to create I-V instead of laying on E Dorian the whole time. Maybe I've heard recordings where that D# rings out. Or maybe this jazz stuff is starting to sink in and I want to put dominants and secondary dominants all over the place.
Oh yeah - continuity error on the shirt change before the performance :)