Co-founder J.D. Heilprin is ankling his post as exec veepee at RioPort, a company that provides technology for digital music companies. Heilprin will become chairman of a new advisory board that will assist the company in developing new strategies to get more Netizens tuned in to digital music. The advisory board will bow in October. In the meantime, RioPort Prexy and CEO James Long will oversee Heilprin’s duties. RioPort has teamed with the MTVi Group, House of Blues and Ministry of Sound as distribution partners.