I applied for access to Google Music beta when I first learned Google was planning a music service and I received an invitation about a week ago. The service takes an “upload” your own music and then play it from anywhere approach. I uploaded my music but have not used it much because no scrobbling add-on (send a record of the song you play to last.fm) was immediately available. I expected it would not take long for the scripters to come up with something and was not disappointed. Several scripts were announced today (here is the source for the one I am using).