Twitter might not have bought SoundCloud, but it still wants a say in the streaming music service's future. The social network has confirmed that it recently invested in SoundCloud -- it won't provide details, but Recode sources peg the value at $70 million. The move is meant to boost "efforts with creators," and reflects the "community-supported approach" that both sites share. It's not certain if there's an official partnership, but it's easy to see Twitter getting some say.