They have a percentage of the content that needs to qualify as Canadian, in order to qualify as CanCon (Canadian Content), it needs to pass at least 2 of the 4 MAPL tests.
Music: Are a majority of the songwriters Canadian?
Artist: Is the performer Canadian?
Performance: Was it performed/recorded in Canada?
Lyrics: Were the lyrics written by a Canadian?
Because things like Radio only broadcast, and don't let you choose your own programming, by making them broadcast a certain percentage of Canadian Content, Canadians are already getting a certain percentage of their royalties; No additional fee needed.
When a Canadian act gets big enough, they often stop counting as CanCon. There was a time when Justin Bieber was popular but didn't count because he records songs written by non-Canadians while in the USA.
Maybe it's just the specific areas I've lived in both provinces, but the winters were very different.