for Windows Phone 7
Except for iOS, built-in mobile music player apps suck. Windows Phone 7 is a great mobile OS but the Music+Video app is not intuitive at all. The "Play" concept is to design a music mobile app in wich great user experience and graphic user interface would match perfectly, in a super easy-to-use environment.
PlaylistsCreate playlists, organize them easilly. The icons are made with coverarts piles of the song actually in your playslists.
ArtistsEnjoy custumized artists pages, with some rich content besides the songs you own, like videos, pictures...
AlbumsSroll through the tracklist in a gorgeous coverart-based interface.