If you are having any problems with either of these just ask, I'll be glad to explain.

If you want to add music in the video section  not on your page or in bulletin go to  videos  then download

 add title and add the you tube  http code  the code from youtube will show as https:

 you will have to remove the s   changing the codes begining from  https://www.youtube.com/__________  to  with s removed below

http://www.youtube.com____________________

Then go to the tools for noobs  link

https://www.tools4noobs.com/online_tools/youtube_xhtml/

there put the you tube code in the top box  size it  as   like 450 x 450

 get the code and place it in the description section  then save. its in video section then