From Music Hack Day
 Lyrics Postcards
Lyrics Postcards is a facebook app that lets you pick-up an album of pictures from your fb account, choose a soundtrack, see how the slideshow of pictures looks like and post it on your own wall.
- Francesco Delfino - http://twitter.com/delfinof
Photo for the demo gently provided by Thomas Bonte - http://www.flickr.com/photos/thomasbonte
 About the hack
The application is built using vanilla musiXmatch API for searching for song lyrics with time synchronization timestamp. Then the RDIO catalogue is searched for music track that matches those lyrics, picking up the version that is closest in duration to the synchronized one.
The tools also let you resync, eventually the lyrics is out of sync. Picture slide show at the moment is not in sync with lyrics (pictures changes every 7 seconds), but this can be easily changed in a next version. It will also be possible to make a picture appear as soon as a given verse is going to be sung.
Currently only the Kern Burns effect is provided.
 What APIs, tools or kit did you use?
- musiXmatch API - lyrics API with synchronization - http://developer.musixmatch.com
- Rdio API - for music - http://developer.rdio.com
- Facebook API - becaues it's a social app ;-) - http://developer.musixmatch.com
Here a screencast that shows how the app works:
Will be published after MIDEM, when everything will be more polished.