This is how to use it:

First of all you need to put it in your resource pack folder and then when you putted it open the resource pack

after all that is done you can do /playsound to play any song there is
search wemmbu by doing /playsound azali
and search flamefrags by doing /playsound nombra
there should be the list of songs

This is the first version of it it may not have all the songs you want stay tunned in for more songs and new versions!