Finally I struck upon a way to enjoy live jazz and make good progress with my coursework at the same time. All I needed to do was choose my venue for the SE20 coursework as the Wardrobe. That way I could go along and enjoy a bit of live music, and as long as I paid attention to what was going on at the bars and with the staff and such it would be productive too.
I went along last night to do the first stage of my fieldwork and have pretty much covered all the angles asked for in the coursework spec, even asking a friend questions to form the customer interview. Seeing as I go so often I should be able to check my diagrams quite easily too. Jazz and coursework seem to play very nicely together, I could get used to this!