I tried it. It didn't work for me. Just letting you guys know.
Here's the thing. It starts up fine, the LSDj song screen comes up, no problem. It's only when I tried to play the project that the Game Boy Player immediately reset itself. I thought maybe it was too complicated to process (even though it played fine on my DMG... Whatever, I don't know), so I tried to load a different project. It reset itself immediately after starting to load. I was hardheaded and kept trying, but to no avail.
inb4 my Game Boy Player is defective. I play other games on it often, with no problems.
Has anyone else gotten it to work?