# Recorded instrument credits

Piano and acoustic-guitar MP3 samples from **N. P. Brosowsky, tonejs-instruments**.
Source: https://github.com/nbrosowsky/tonejs-instruments
Sample licence: **Creative Commons Attribution 3.0 Unported** — https://creativecommons.org/licenses/by/3.0/

The upstream source notes credit piano recordings to **Versilian Studios VSCO 2 Community Edition** and acoustic guitar recordings to **University of Iowa Musical Instrument Samples**.
Source provenance: https://github.com/nbrosowsky/tonejs-instruments/blob/master/sample-source-info.txt

LearnTonic uses an unmodified subset of the published MP3 files. Playback transposes nearby recorded notes and applies gain and release envelopes. No endorsement by the sample creators is implied.

Original teaching phrases and rhythm patterns are LearnTonic exercises. Familiar historic melodies have source and transcription credits in the Melody Library under “Memory cue, sections & sources”. No commercial song recordings are included.