TuneCore announced an expansion of its partnership with Aftermaster. The newly expanded partnership gives TuneCore members access to the Promaster by Aftermaster instant mastering service, offering audio mastering of unparalleled quality at the click of a button, without breaking the bank. The latest addition to TuneCore's comprehensive array of artist tools and resources, Promaster is unlike any other product on the market in that it was wholly developed by artists, producers and audio engineers to streamline the mastering and storage process without compromising quality or creative intent.