The Spotify Web Java Library provides a wrapper to the Spotify Web API. The library provides helper functions for interacting with your music library, authentication, browsing, searching, profiles, playlists, and music metadata.
Maestro.Fm wants to take your music experience to cloud nine, maybe even ten. Actually that could be a little overstated, but at least they are going to use cloud computing to do it. With a functionality similar to Google Music, a little application runs on your PC and uploads all your music to Maestro. Once it’s there, it’s augumented with album art, lyrics, and other lovely decorations. It’s kind of like a music library makeover. Google already has a thick collection of API services. Will they be interested in opening Google Music up for developer access? Don't wait around and wonder, the Maestfo.fm API is already here.