import sys
from mutagen.mp4 import MP4
#print(sys.argv[1:])
# https://mutagen.readthedocs.io/en/latest/api/mp4.html#id1
conv=sys.argv[1:]
for item in conv:
	if item.endswith('m4a'):
		names=item.split('-')
		# File names have the metadata in this case:
		# 00-Song Title-Artist-Album-otherinfo.m4a
		audio=MP4(item)
		audio['\xa9nam']=[names[1]]
		audio['\xa9ART']=[names[2]]
		audio['\xa9alb']=[names[3]]
		audio['\xa9gen']=['Electronic']
		audio.save()