It sounds absolutely terrible and rather harsh, but as someone who always said he couldn't learn to play music, I'm still proud of my first steps. ;)
Aside from the atrocious lack of musical skills, I think the setup is rather cool though!
I got my wife's Yamaha #PSR295 #Portatone musical keyboard hooked up via MIDI-Out over USB to my Windows 10 laptop, where the #openMSX #MSX #emulator hooks it into the #Yamaha #SFG05's #MIDI-In of an emulated Yamaha CX7M/128 running #Synthesix by @Grauw, which uses its #SCC chip to output the sound.
First part of the video I play the beginning of #TwinkleTwinkleLittleStar without any effects, and afterwards I repeat it while holding the space bar, which I think runs a Low Frequency Oscillation effect on it? I really should see if Synthesix has a manual. xD