Sound Off is a service that makes it easy for music producers to receive feedback from their clients / friends on the tracks and mixes they've created. Users can leave comments which are time-specific so everyone knows exactly which part of the song is being talked about. Users are able to upload every version of their track in a simple, organized manner. Tracks, comments, and revisions are archived forever allowing users to create an organized catalog of their work.
Sound Off eliminates the hassle of sending separate track revisions through email over and over, with clients and producers having to search through their inboxes to find the right versions.
via BetaList http://bitly.com/25RHr5m
by Robert Hughey (Google+)