This is a stripped down version of fluidsynth (library only)

from git://github.com/FluidSynth/fluidsynth.git
rev. v2.0.2 (6e9d84f02a7a0f7e436c2adffc4a065608f490ba)

fluidsynth is licensed in terms of the  LGPL-2+, see individual source
files for (C) holders.