From Music Hack Day
It's live, check it out. And it's fully functional! http://callaboraoke.com/
- A call for collaborative karaoke!!
- Friends collaborate on singing songs.
- Songs are broken up by lines.
- Users sing along and are recorded over the track on the phone.
- Songs are stitched back together and notified when ready.
 API Integrations
- Pulls lyrics data with timing information.
- Cuts up an mp3 into pieces based on who is participating, and the timestamps.
- User enters phone number and it calls the user to record their part of the songs.
- As the user record pieces of the song, the lyrics page is updated in real time.
- echoNest for pulling artist images
- In the middle of SoundCloud upload integration