I took yesterday’s setup and added polyphonic Midi.

Schematic same as previous post, just added a Midi Shield.

I can use my QY100 as midi keyboard. But playing midi files is also fun!

Because it isn’t using the right instrument and not all channels are being used.

I wanted to make a register replacer, which utilizes a sdcard reader and music dump to play songs.
But I think I’m going to make a full-blown Midi song player for the YM2203.