Spotify will unveil a new slate of apps for its desktop client Thursday, adding to the first round of 15 apps that debuted Nov. 30.
Half of the 12 new apps -- maybe more -- are from record labels: Def Jam, Domino, Matador, [PIAS], the Warner Sound and Digster, the playlist service launched by Universal Music Group Distribution last September. Each of these apps introduces listeners to the artists and catalogs of their respective labels.
The other six apps offer a variety of ways to discover music and delve deep into Spotify's catalog of licensed songs. Universal Music's Matt Larsen and Matt Schofield created TweetVine at a Music Hack Day. It creates playlists based on tweets that use the #nowplaying hashtag.
Filtr creates playlists based on the music tastes of users' Facebook friends and also recommends existing playlists. The Legacy Of, which sounds like a product of Sony's Legacy Recordings, claims to offer a "visual feast" with high-resolution photos, playlists and albums of legendary artists such as Miles Davis and Stevie Ray Vaughan.
Hot or Not, which may or may not be related to the popular website of the same name, allows users to vote on songs and earn points and badges along the way.
Finally, Classify allows users to browse a library of classical music by composer, era, mood, instrument and genre.