Google has Magenta. https://piano-scribe.glitch.me/ is an application of that. Source: about 1 year ago

It probably was something from https://klangio.com/. There's also this https://www.youtube.com/watch?v=5U-WL0QvKCg which seems to be open source. And this https://piano-scribe.glitch.me/ . Maybe you can find more in google. Source: over 1 year ago

You can try to google magenta the songs and extract a MIDI file from them. https://piano-scribe.glitch.me/. Source: over 1 year ago

I either make the MIDI files myself or find them online. My workflows for making them: - either painstakingly transcribe a piece note-for note using midieditor or - find a youtube video of a good rendition - download as MP3 - convert to midi using https://piano-scribe.glitch.me/ (I wrote my own software for this step but Piano Scribe is about 8% better. - Source: Hacker News / over 1 year ago

Have you tried Piano Scribe? https://piano-scribe.glitch.me/. Source: over 2 years ago

Maybe something like this? https://vmpk.sourceforge.io. Source: about 1 year ago

Second. Are you sending and recovering normal MIDI Notes okay? This rules out most connectivity issues between your OS, software and hardware. You can use Pocket MIDI and VMPK to test this out. Source: over 1 year ago

Emulate midi input. Run a loopback midi driver and a program that can send (and optionally receive) midi. For example, you can run LoopBe1 and VMPK. This setup also works for people without a midi keyboard; they can use a conventional keyboard to provide input to VMPK, which will then generate the midi notes for LoopBe1 (which VRChat will pick up). Just make sure that the Midi Output Driver in VMPK is set to... Source: over 2 years ago

VMPK (https://vmpk.sourceforge.io/) is handy too - it's a virtual MIDI keyboard that you can use to play some of the stuff in MAME if you don't have a real MIDI keyboard of some sort. Works on Windows, Linux, and Mac. Source: almost 3 years ago

I found this: Https://vmpk.sourceforge.io. Source: about 3 years ago