Howe selected the source music for the club scene and put together a special arrangement of " Since I Don't Have You " that Buckaroo sings to Penny Priddy. Weller, an accomplished musician, played the guitar and pocket trumpet, did his own vocals, and learned to mime piano playing. Howe and the filmmakers decided not to go with a rock music score for the film and opted for an electronic one instead. Howe wanted to "integrate music and sound effects so that everything would merge on the soundtrack with no distinction between music and sound."