If anyone would like to know how to post music to there profile i can help but theres a catch it will play the music but it also plays the video...
step 1: find a youtube video of the song u want
step 2: copy the url its too the right of the vid it should say url NOT EMBEDE VIDEO! XD just wanted to make tht clear
step 3: go to ur profile and click edit profile top right of the page.
step 4: click on content in the menu (again on the right)
step 5: click add media
step 6: go to the media box click edit
step 7: first time in whatever u want the heading to be
in the url spot post the url
step 8:if u would like the video to start when ur profile is opened type or copy this &autoplay=1 if u want it too loop and auto play type or copy &autoplay=1&loop=0 .
thts how the music works on my profile check it out for yourself!