Go to game files. Right click on the game in your Steam library and select Properties -> Local Files Tab -> "BROWSE LOCAL FILES"

You now can see "MyMusic" folder. Put the music there





Find the tutorials how to convert your music files into VM8 and do it in the way you find most convenient. I myself use MediaCoder and convert music from .mp3 to VM8.

If you want to know how I do that - drag .mp3 to open MediaCoder program, at the bottom there should be "Audio" tab - click it and you can see "Format" tab - change it to VM8.
After that - Click "Start" at the top-right.

After all that - play the game. You should see at the menu "Music Manager". Click on it.

You can see, that the game probably auto-selected MyMusic, but if it didn't - just press "Add Track" and press Left or Right key.

Press "Add All Tracks" to... well, to add all your music into the game.

Congrats, now you have your music in-game! If it has artifacts or your ears are bleeding - that means YOU DIDN'T CONVERTED YOUR MUSIC FILE INTO VM8!