It is with echoes of the golden age of Supertramp, David Bowie or Elton John that Mikaël and Rafael Fortin remember their childhood in the family nest. Eventually, Coldplay, Karkwa, Arctic Monkeys, Malajube, Jean Leloup, Arcade Fire, Black Keys and Radiohead would take to the floor and galvanize the musical imagination of what would become the art-rock tandem Hey Major. Hailing from Sherbrooke, where the first musical stammerings were taking place, the two brothers first formed Orange O'Clock (2015 CBC Searchlight Award) and then, eventually, Hey Major, as soon as they were recruited into the ranks of the…