From the press release:
Consumers can stream music from a suite of over 150 exclusive playlists that are curated and kept up to date by an expert team of US based musicologists. The playlists span a wide spectrum of musical genres from underground Detroit house tracks to New York Philharmonic favorites. Nokia Music also offers playlists created by global artists such as Lana Del Rey, Lady Gaga and Rihanna.
Beyond the curated playlists, music fans can create their own personal soundtrack by selecting the Nokia Music 'CREATE' function that taps a library of millions of songs and generates a playlist based on, and inspired by, the artists they love.
Completely advertisement-free, and requiring no registration or subscription, Nokia Music lets consumers immerse themselves in the dulcet tones of their favorite artists without being disrupted.
For maximum convenience, Nokia Music playlists can also be enjoyed offline so consumers can listen to their favorite playlists anytime, anywhere - perfect for a long flight, journey to work or train ride.
Nokia Music can be downloaded through the Nokia collection of the Windows Phone Marketplace.
While Mix Radio is unlikely to replace syncing across your own music via Zune Desktop, or the on-demand nature of services like Spotify, MixRadio is going to prove attractive to users of Last.Fm, 8tracks and other streaming radio style services. Live Tile support allows favourite Mixes to be pinned to the Start screen.