Google has added Google Music Search to its search services line. Chris Sherman and Gary Price have the Search Engine Watch prime time article named Google Adds Music Search Feature. But there is crazy vertical creep with the music search feature already, just do a search on one of my favorite artists at Google. And you will notice it selects an image (not sure if it is using Google Images) and has links to more info. That link takes you to a lisiting of albums "sorted by popularity" by default, with quick links to buy it at the various stores (first being iTunes). Then if you click on album name it shows you the details of that album with more links to buy it now. You can drill down deeper into the song and see information on lyrics and more (also buy the single track, if available).