In this tutorial, i'll show you how to download music onto Windows 8 and/or Windows RT
Step 1: Go to Xbox Music
When on the start menu, click or tap the Music app and it will bring up Xbox Music
Step 2: Go to Search
When on the menu, go to the new search bar on the left side. this
is on Windows 8.1 so this maybe new
Step 3: Search and Find
On the search bar, type in a song, artist, or album. (for example, I typed in a band called I Fight Dragons) click on it and press the plus.
after pressing the plus, hit "Add to Collection"
Step 4: Wait
Now wait till it loads onto Xbox Music and onto cloud and you are done!