exporting to midi feature sucks

[Bagelsir]

played in pfa vs online sequencer

acoustic guitar turns into electric guitar (clean) (classic acoustic guitar turns into nylon acoustic guitar)
smooth synth turns into square lead
lucent choir turns into acoustic grand piano
distortion guitar turns into cello (classic distortion guitar turns into distortion guitar).

also we need more percussive instruments for midi like celesta, marimba, glockenspiel, and more (for midi, don't say "pRoGrAm iT yOuRsElF") (i know drum kit has marimba, it just doesn't work when it comes to midi)

[GamemakerX1]

played in pfa vs online sequencer

acoustic guitar turns into electric guitar (clean) (classic acoustic guitar turns into nylon acoustic guitar)
smooth synth turns into square lead
lucent choir turns into acoustic grand piano
distortion guitar turns into cello (classic distortion guitar turns into distortion guitar).

also we need more percussive instruments for midi like celesta, marimba, glockenspiel, and more (for midi, don't say "pRoGrAm iT yOuRsElF") (i know drum kit has marimba, it just doesn't work when it comes to midi)

#1. As for the very weird sound converting, I think these must be the sounds used to make the stuff on OS.
#2. Understand that whether or not the samples are real instruments, they are be modified or edited not only to avoid copyright but to also have the current OS feature as of right now.
#3 Every time we, get new instruments, the Devs have to make sure everything works right. So, for there are lots of bug and annoying issue that even I come across ever once in a while.

*Note, I am making a general sound font. It will have all instrument. I will also be building a custom Sound font with better sound too. I provide a drive link once it is done.

[Lopyt]

MIDI is not well supported on OS and isn't a big priority for the developers. If you plan on using General MIDI soundfont I'd recommend finding a software that is designed for that. OS isn't going to add General MIDI sounds to the website probably