Great idea this (cheers to Lukablogg for alerting me). I wonder if the same could be done for New York. Somehow I think not. As much as it's a great rock'n'roll city, the rock'n'rollness seems too concentrated--in the West Village (a long time ago) and the East Village. It doesn't seem to envelop almost the entire city like London. However it's quite possible I'm talking out of my arse.