Mary Tenwinkel After graduating from the University of Wisconsin - Milwaukee with a degree in Economics, Mary pursued a career in investment management. While working in Milwaukee she also served on the boards of many non-profit organizations, including a community music school, two choral groups, and an organization which sponsors a biennial piano competition. After being away from choral singing for many years, she resumed singing over 20 years ago and hasn’t stopped since. Prior to moving to Sonoma County in 2010, Mary had been singing with the Milwaukee Symphony Chorus for seven years. After settling in Santa Rosa, finding a good choir to sing with was a priority. Mary is delighted to be singing with Sonoma Bach.