Salamander Grand Piano
Recordings by Alexander Holm on a Yamaha C5.

Original collection: https://archive.org/details/SalamanderGrandPianoV3
MP3 distribution and source credit: https://tonejs.github.io/audio/salamander/README
Licensed under Creative Commons Attribution 3.0 Unported.
https://creativecommons.org/licenses/by/3.0/

Narwastu uses a subset of 15 MP3 recordings, shortened to about 4.2 seconds.
The player adjusts their playback level to match the choir mix.