SoundPacks that are obtained from Multiplayer Piano (and clones), and ported to SF2.
The SoundFonts are split into 3 branches; Quality, Lite, and SuperLite, so you can decide which variant is right for you.
Although Google Drive doesn’t show descriptions most of the time, I’ll explain these branches here:

Quality: Uses all samples from the SoundPack. No alterations were made aside silence removal at the beginning.

Lite: Uses reduced samples to lower file size. Again, no alterations were made to the samples.

Super Lite: Uses reduced samples just like regular lite, but splits the samples in half to make use of Looping.

See the main folder to view everything.
(Note: The Experimentals folder is not a branch, but rather extras.)

@Karol It doesn’t get replaced, it just throws "Only multiplayerpiano󠀀.󠀀com is official - " at the beginning of every message if any of the listed words are found.

It’s ironic to see that pasting the exact message also triggers this.

On March 22nd, Roblox made a decision to private all audios that are longer than six seconds and aren’t considered sound effects due to lawsuits.
(I just realized the audios on the readme are still publicly available at the time of writing this…)

I fiddled with the piano models that were used in other places for quite a while to the point where I wanted to have the sounds as a Soundfont, and- well, here we are.

🔊 Audio Preview (3.83 MB OGG, rendered in KMC)
[The song featured is

📁 SoundFont Archive (16.2 MB 7z compressed, 30.8 MB uncompressed)

It’s not perfect, but it sounds close. Plus it’s in it’s original stereo form, rather than hearing compressed data through the game client.