Instrument samples in this folder (MP3, one file per MIDI note) come from the
FluidR3_GM SoundFont by Frank Wen and contributors, licensed under the
Creative Commons Attribution 3.0 Unported license (CC BY 3.0):
https://creativecommons.org/licenses/by/3.0/

Per-note MP3 renderings by Benjamin Gleitzman, "midi-js-soundfonts"
(https://github.com/gleitz/midi-js-soundfonts), MIT License, (C) 2012 Benjamin Gleitzman.

Modifications by TunerChords: only a subset of notes/instruments is hosted; at playback
time pitch is corrected per note (see tune.json, measured offline) and an envelope,
gain trim and a small room reverb are applied. Sample audio files are unmodified.