Yes, it did help the careers of many a Canadian performers.....some not so worthy of the airplay. I think Lightfoot was one not needing that. Him and Ian Tyson are about as iconic as you can get in a Canadian singer. Well you have to add in Stompin' Tom Connors for the trifecta. You havn't lived til ya heard "Sudbury Saturday Night"
Now you have me thinking (always a hazardous undertaking) since he gave up his citizenship. Do his prepatriation songs get a higher score than those he wrote/recorded when he was Canadian? Do you get 25% credit for CSN&Y songs? Same with Crazy Horse? What's the formula for a song he wrote and recorded as a Canadian but now performs as a US citizen?
In my younger days, I was able to tackle n-dimensional equations, but this is giving me a headache!