What are these free audio channels through coaxial cable?

Hey guys,

I hooked up my coaxial cable to my TV here in Toronto, scanned for channels and it found a bunch of audio-only channels. I'm not paying for any cable TV, but previously had Rogers. These audio channels start at 98-1 and continue until 98-69 one by one. I'm trying to figure out what these channels are because I heard a song I liked, and just want to know what these are out of curiosity.