musicafe Suite — instrument sound samples

Sources and licences:
- tonejs-instruments by Nicholaus P. Brosowsky (CC BY 3.0)
  https://github.com/nbrosowsky/tonejs-instruments
  Original sample sources: VSCO 2 (Versilian Community), Karoryfer
  Samples, Freesound (flcellogrl, quartertone, donyaquick),
  University of Iowa Electronic Music Studios.
- FluidR3_GM soundfont by Frank Wen, converted to mp3 by Benjamin
  Gleitzman's midi-js-soundfonts (MIT)
  https://github.com/gleitz/midi-js-soundfonts