After a recent DMCA wave, Twitch tried to clarify a few things surrounding the use of music on their platform:
But the part about actual video game music led to more questions and this was their answer:
Suffice it to say, streamers aren't happy.
Music-Related Copyright Claims and Twitch
Creators, we hear you. Your frustration and confusion with recent music-related copyright issues is completely justified. Things can–and should–be better for creators than they have been recently, and this post outlines our next steps to get there. Moving forward, we’ll be more transparent with...
blog.twitch.tv
But the part about actual video game music led to more questions and this was their answer:
Suffice it to say, streamers aren't happy.