Current questions and answers regarding the map editor.

You won't see anything in the editor; if you have many map mods during the game, they will interfere with each other.
The ogg file is not inserted into the map, but into the music folder.

And where is this folder?
In data.pak, there is a _(Music) folder in the Sounds folder, but it only contains xdb files.
I'm using Play2DSound, and nothing is written in the console; there is still silence. Does it need an xdb file as a sound or music file?