I've already said hello and goodbye to MixRadio. As I said last month's discussion (
http://forums.windowscentral.com/xbo...sic-where.html), there's no comparison between Xbox Music Pass and MixRadio - + or not. It's great to have another free or low-cost music option, along with Pandora and Spotify, and it's a very sensible fit for lower-cost phones. It's especially great for countries that still don't have access to Xbox Music Pass.
Xbox Music Pass is for downloading an unlimited amount of music you know and that you select with all the specificity you want, and you can choose to rent all of it for an unlimited term or purchase any part of it. I also have the original music pass, but these features hold for the current one. MixRadio is fine for discovering or exploring music -old and new, and may very well be a good buy if it fits/fills your music tastes and desires; but, the service allows very limited choosing, as such, limited downloads of what you do choose, and limited periods to rent such music.
For discovering music, I use the standard XBM app on my Surface and can spend hours sampling the Explore section. Occasionally, I also use the Pandora app exploring selected artists.
The XBM app on my Lumia 1020 is a separate matter. While it has serious limitations for me because I can't sync the 1020 with my Windows 7 desktop Collection, the app playback works fine. Fortunately, I mostly use my Fujitsu desktop and Zune players to enjoy my entire collection at home and anywhere I roam. About 45 GB of the collection consists of beautiful, rented Xbox Music Pass downloads.