I just realized, thanks to NusuttoSan's
recently posted video of Magic Lamp, where Gowin reverse-engineered their sound driver from.
I already spoiled it in the comments, so don't peek if you want to guess... but I'll give a hint: the sound effect at 1:55 is a dead giveaway if you've played the game in question.
The answer's in the video's comments for those who still aren't sure.
Edit: ...And my memory is made of fail, as always. I already mentioned this back in the video for
Stone Age. ::facepalm::
Edit #2: This also serves as a connection between Gowin's color and monochrome games. Despite the...
very different quality of the music composition, the mono games also use a Konami sound driver. (See, for instance, the pause sound in Rainbow Prince.)