adding music to a theme

[ballsinsulphuricacid]

I just got twilightmenu (in january?) and i've been having fun for a while, but i just found out you can change music through a theme, but how?
Please tell me of any utilities (if i need them) which can convert music for twlmenu
thank you.

 

[ryba]

https://github.com/DS-Homebrew/TWiLightMenu/blob/master/romsel_dsimenutheme/resources/sound/sound.md