Polaris Winner Buffy Sainte-Marie on Kanye, Joni Mitchell, Leonard Cohen

“I don’t think it really has sunk in yet — I really didn’t expect to win,” says Buffy Sainte-Marie. The 74-year-old Native Canadian singer-songwriter is referring to recently winning this year’s Polaris Music Prize (Canada’s annual award for the country’s best full-length album of the year) for her record Power in…