Various, Coldplay, David Guetta, Lykke Li, Tinie Tempah, Daft Punk, Pink Floyd, David Bowie, The Kinks, Goldfrapp, Oscar Peterson

Seattle Grunge

Heavy riffs played by people raised on punk, recorded cheap in the Pacific Northwest and then sold worldwide.

Boston Alternative

College radio, cheap rehearsal rooms and loud guitars: the US underground's most literate, least glamorous engine room.