Research London's rock music heritage

I am creating a visitor experience for people coming to London based around London's amazing rock music history.

I'm looking for well researched information for 10 different relevant locations that I can adapt and use. I'm looking for about 200-250 words per location. It is essential that here's something for us to look at at each stop, so there is a visual point of interest too. This needs to be on a different level from just raiding Wiki and it would be very useful if you actually knew or had visited the locations you were writing about.

My clients are all ages and predominantly American, so Beatles, Bowie, Stones, Hendrix etc are all valuable, as are more recent additions. The style is very conversational and needs to be engaging and light while giving one or two memorable and unusual 'discoveries' that the clients will remember and take away.

Ideally the locations need to be within walking distance of each other but I realise there will always be the odd one (Abbey road studios for example) that might be a bit out on a limb.