no i think you just open data>sounds then open the json with a text editor, like notepad or notepad++
I was able to get menu sounds to play that way to a soundpack before, and all I did was copy/paste a couple lines of code(which was from an example in the first link I provided earlier, so it was especially easy). It actually got added I think anyway, so I didn’t have to keep adding it with each game update.
I believe Zhilkin’s links show you where in the code it would be triggered, combined with my links showing you the knowledge of how to edit it.
The only problem is, if you make changed and then update the game I think they would get overwritten, so that’s where GitHub and compiling/forking would come in handy(I a bit clueless on how compiling/forking actually works/is used for TBH, besides having your own copy you can make changes to and submit to the main I think maybe). Pretty sure there’s guides on how to work that stuff, I just haven’t looked into it.
So you could do it with trial and error, I figured out the menu music thing and I’m not a genius or anything
edit: i must have deleted part of a sentence, but I added it back in