Following our story yesterday about the new Deadmau5 album being available on Grooveshark in the US, despite being withheld from other streaming services, we were tweeted by Grooveshark software engineer James Hartig. He pointed out that “Grooveshark has a deal with Ultra for the deadmau5 content”, linking to a March 2011 article about label Ultra opting into Merlin’s licensing deal with the company. Which is true. But what’s going on: if Ultra and/or Deadmau5’s management have decided to keep the album off other streaming services, why would they leave it on Grooveshark? CEO Sam Tarantino’s statement on the deal – “It is active. We’re working with them to address the issue. We didn’t have their windowing on this release” doesn’t make it much clearer.