Looks like the music game business is slowly imploding. Critical mass in fake plastic instruments must have been reached. First, RedOctane is closed by Activision, and now this:

Harmonix shareholders received a payout of $150 million related to the franchise’s 2007 performance, but Viacom has said in a filing with the US Securities And Exchange Commission (via Paid Content): “We believe that we are entitled to a refund of a substantial portion of amounts previously paid, but the final amount of the earn-out has not yet been determined.”

(via Edge Online.)