I forgot to adjust the doppler levels, so music is directional. Apologies.
Also, what exactly was your problem in level 3?
Vision is limited because an orthographic view was used, and sometimes, you need to jump into the unknown to further explore the level. Sometimes, you need to move forward while you jump to finish level 3. Sorry for not making it clear.
*EDIT: I will update the game after the game jam to sort things out*