"â€¢Post a tracklist, an Rdio link, and a Spotify link. All songs may not be on both."
What the hell does "All songs may not be on both" mean in this context?
Maybe I should have written it: "Don't assume that a song will be on one just because it's on the other."
I've had songs that I wanted to include, but Rdio didn't have them, and Spotify did.