I had some fun making music for the upcoming game Wrestling Thunder City by Brick VGS! It's a GBStudio project made with the Gameboy Classic's limitations in mind.
https://soundcloud.com/tiptoptomcat/sets/wrestling-thunder-city-vol-1?utm_source...
Feel free to check the project status out at https://bricks-vgs.itch.io/ and see a short video with the sounds featured at Bricksvgs's Twitter page
Lastley, visit https://tiptoptomcat.itch.io/8-bit-gameboy-songs-gb-studio if you want to hear any more 4-channel 8-bit tunes as well