Listening through this right now. I am really impressed with the sheer volume of work here. Im sure it took a while to get all this put together and its really nice to see all the individual screenshots because I can pair the instruments and sounds in my head.
The first song was quite a bit different from the rest of the tracks so moving between them pleasantly surprised me. It feels like you really could just import this into an existing game and it would work. You do good work!