This is the incomplete fork of this: https://scratch.mit.edu/projects/428178698 It has a placeholder system for 3-d rendering that does not use sine and is directly related to the relative angle of you in relation to the audio emitter.
The full 3D sound mode does nothing. Leave it disabled. The song used is 'Fight Fire with Fire' by Metallica. This is a remix of @BurgerBoyFTP's project, "Raycaster with entities!" (https://scratch.mit.edu/projects/90705743/) (EDIT: Whoops, the last link was the wrong project! I fixed it) I did the audio code, map and textures by myself.