Licensing Gray Area
These files have an unknown license, were obtained from unkown sources or were compiled from third party material.
Extra considerations:
Samples are just compiled. used samples from Arachno, Suave Patria, Japan Herentals, FS Erhu, Airfont380, Musyng Kite, SONIVOX GM EAS, WDSF (windows default soundfont), Rhythm Heaven, Sonatina, Squidfont, Aegean, SGM, Spectro Font (Mine), Spectro Zounds (Mine), YAMAHA Sample Library for PSR-SX700, etc