Seeqpod is an embeddable music search engine.
Acquired by Intertrust
Seeqpod is a music search engine, with over 12 million songs indexed. Seeqpod's player is embeddable and will automatically find music videos while you listen to songs. Users can also create their own playlists. Unlike Pandora, lala, and Imeem, Seeqpod's music is not licensed.
SeeqPod offers a full REST API for Developers and Partners:
www.seeqpod.com/api.php
Seeqpod's competitors include Songza, Skreemr, Deezer, and HypeMachine.