This is amazing!
Honestly, i think if you tried, you could probably put words to it! Then again, it's amazing the way it is. If I was making a happy game, I would totally use this, just the way it is~ But I'm making a depressing song, so I have to find depressing songs.
Keep up the amazing work, and I look forward to hearing the full version~
Please contact me if you would like to use this in a project. We can discuss the details.