Even More NBS files!
https://github.com/euichan41/euichan41_nbsfiles
https://github.com/TheInfamousAlk/nbs
https://github.com/nickg2/NBSsongs
Some Chinese Dude also gave me some.
if you want to add songs make a pullrequest or use issues and link the source from where you got the NBS files from