A collaboration between ASCAP, BMI and SOCAN. Our goals are to simplify the music registration process and create a common, authoritative picture of the musical works we represent. Through MusicMark, publishers can submit a single registration file to all three performing rights organizations (PROs) simultaneously, even if the work was co-written by members of different societies. Each PRO will then integrate the registration data into its respective repertory of works. MusicMark is currently available to publishers that register music through Common Works Registration or Electronic Batch Registration.