Hanon 1–10 — Hand motion study
Music: Charles-Louis Hanon, The Virtuoso Pianist, Part I (1873; public domain).
Exercise notes and fingering: existing SPino Hanon 1–10 data, preserving its documented edition choices.

Sampled piano: YDP Grand Piano, FreePats release 2016-08-04.
Original Yamaha Disklavier Pro multisamples for OLPC: Dr. Mikhail Krishtal and the team at Zenph Studios.
SoundFont and sample modifications: Roberto, FreePats project.
License: Creative Commons Attribution 3.0 Unported.
Source: https://freepats.zenvoid.org/Piano/acoustic-grand-piano.html
License: https://creativecommons.org/licenses/by/3.0/
The samples are rendered as a new performance from MIDI; the sound bank itself is not modified.

Offline SoundFont rendering: TinySoundFont, Bernhard Schelling and contributors, MIT license.
MIDI parsing: TinyMidiLoader, Bernhard Schelling, zlib license.
Source: https://github.com/schellingb/TinySoundFont
Exact dependency revisions and license notices are preserved in audio/dependencies/.

Hand base: generic-hand assets, Copyright 2019 Amazon.com, Inc. or its affiliates, MIT license.
Authoring and animation: the separate SPino Blender Hanon prototype.