This is great! As a spotify junkie (and since you're using the spotify api), it would be great if there were links from the artist/album/tracks directly to spotify.
Yeah, I almost did this. What stopped me is that I assume most people using it do not have spotify accounts, and it seemed lame to link to (what would become) a signup page.
Agree that it needs _some_ kind of call-to-action though. There's nothing to do when you find an artist you like!
To be honest, I don't have Spotify and I'd still probably use it for that. Perhaps link to searches on multiple services? Youtube/SoundCloud/Amazon/iTunes maybe? With referral links you might even be able to make a few quid to cover the hosting at least.
Agree that it needs _some_ kind of call-to-action though. There's nothing to do when you find an artist you like!