[2][3] Winter was with The Guess Who for four years and became one of the band's primary songwriters in tandem with Cummings.

[5] After six studio albums, Winter left The Guess Who for undisclosed reasons in 1974,[5] and was replaced by Domenic Troiano.

Winter briefly joined a lineup led by bassist Jim Kale in 1977–78, and contributed to the album Guess Who's Back.

[1] Winter suffered from health problems attributed to excessive alcohol use, and died at age 51 from kidney failure on December 14, 1997.

[1] His alma mater, Daniel McIntyre Collegiate Institute, initiated an annual scholarship in Winter's name in 1998.