I posted the trailer video for Tin Pan this morning, and here it is. It looks like an interesting app for getting song ideas up and running quickly, and I especially like their simple yet effective app store description below:
Bring song ideas to life with Tin Pan Rhythm.
Compose and arrange short musical phrases through a process of play and discovery.
The simple interface guides you along: create a chord progression, then arrange the band in real time.
Use your creations as background music, inspiration for songs, or as practice loops for your real-life instrument.
Record and share your music or use it inside your favorite apps.
Nerdery: Audiobus, InterApp audio, Dropbox, AudioCopy, Audioshare.
Tin Pan costs $2.99 on the app store now.