I would like to see a combination of this realtime London subway map and this piece that turns the NYC subway into an interactive string instrument.

Conductor: www.mta.me from Alexander Chen on Vimeo.

Song Lines is an album by Tom Johnson’s Shark that based on the Barcelona subway system. I wonder if the title is related to Bruce Chatwin’s ‘The Songlines’ novel that was recommended to me by Carlos. The book describes how Aboriginal songs functioned as a kind of GPS: they could find their way by singing ancient songs.