Imogen Heap performing "Just For Now." Heap, incidentally, is one of the best artists I've ever seen live. her studio work is heavily produced, and so, at live shows, she uses live looping -- literally, recording pieces of the song on the spot and then setting them to loop -- to reconstruct her songs, brick by brick, sound by sound, element by element. It's very impressive, and results in some great music to boot.
