Birthday piano sample attribution

Instrument: FluidR3 GM Acoustic Grand Piano by Frank Wen.
MP3 conversion: MIDI.js Soundfonts by Benjamin Gleitzman.
Source: https://github.com/gleitz/midi-js-soundfonts/tree/044fab8e1456bfafc5776e86dfd6bb8697149aef/FluidR3_GM/acoustic_grand_piano-mp3
Project: https://github.com/gleitz/midi-js-soundfonts

The source project's README distributes these converted Fluid samples under
Creative Commons Attribution 3.0 Unported:
https://creativecommons.org/licenses/by/3.0/

The note samples are copied without alteration. Playback on time.tla.so changes
their pitch, volume and timing and adds accompaniment, panning and reverb.
The birthday piano arrangement is created for time.tla.so, not copied from a
third-party musical recording. The authors do not endorse time.tla.so.

Upstream software/sample notices are preserved below as well.

Copyright (C) 2012 Benjamin Gleitzman (gleitz@mit.edu)
Copyright (c) 2000-2002, 2008 Frank Wen <getfrank@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.