The weekend passed, and we’re still talking about digital music. That’s because Om broke the story on Facebook’s music strategy. Talking to developers, he’s teased out Facebook’s ideas for a music dashboard that could support Spotify as well as other streaming music services, and offer another social layer for sharing, recommending, and commerce. There’s very little margin left over on 99-cent singles sales already – let alone one with Facebook’s 30 percent Credits cut. But I could imagine a try-before-you-buy plan for subscription services. And this strategy would likely free up Facebook from having to do royalty deals with the labels and publishers. Meanwhile, I like Pandora’s mass-market radio approach. It builds on existing music listening and buying patterns rather than trying to change consumer behavior, though I concede Pandora faces a tough royalties vs. ad revenues business equation.