Acoustic grand piano samples

Source: FluidR3_GM soundfont by Frank Wen and contributors.
MP3 renderings: gleitz/midi-js-soundfonts contributors.
https://github.com/gleitz/midi-js-soundfonts
https://github.com/gleitz/midi-js-soundfonts/blob/gh-pages/FluidR3_GM/acoustic_grand_piano-mp3.js

License: Creative Commons Attribution 3.0 United States
https://creativecommons.org/licenses/by/3.0/us/

CTK extracted the C2, C3, C4, C5 and C6 MP3 samples unchanged from the
published data-URI soundfont. Playback transposes these samples to the
score's pitches and applies volume and note-release envelopes.
No endorsement by the original creators is implied.