Momixa - Pick two songs and get the perfect mix
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
The Best Song - The fun way to discover good music
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
Splice - Music creation, collaboration, and sharing made simple.