a weird monster that pretends to generate nsf files out of specially made it files. It's not yet fully released to the public, but definately on the testing phases =o

More info and links when author makes public release but from now quote from the readme:

"IT2NSF is a conversion program that accepts special IT (Impulse Tracker
module) files which contain instrument data specified with a form of MML and
then produces NSF (NES sound format) music files with it."