Licensing Gray Area
These files have an unknown license, were obtained from unkown sources or were compiled from third party material.
Extra considerations:
Samples from the plugin are recorded and exported to .WAV files using LMMS, and then arranged them into a soundfont, as always, just like I did with many other things like my custom presets from TripleOscillator, Monstro, LB302 and ZynAddSubFX plugins and all of the other VST plugins.