San Francisco - Rock band Deerhoof have posted the sheet music for an unreleased single from their forthcoming album online under a Creative Commons license, and are encouraging fans to record a version of the song themselves and post it to a community site, Wired.com reports. So far, nine versions have been posted to the band's CASH Music site. One fan even went so far as to transcribe the sheet music into MIDI format, and posted the resulting basic sound files online, so that those who don't read music can take a crack at a mix.