Jason Hirschhorn has been upped to senior veep and general manager of the VH1 Group at MTVi. He was general manager of Sonicnet.com. Hirschhorn will now oversee the growth and direction of both VH1.com and Sonicnet.com and report directly to Nicholas Butterworth, prexy and CEO of the MTVi Group. He replaces Fred Graver, now exec veep of production and programming at VH1. Prior to joining the VH1 Group, Hirschhorn was MTVi’s veep of product development for Sonicnet.com and founded music Web design shop Mischief New Media.