The Rochester chapter of the Barbershop Harmony Society (SPEBSQSA) was chartered in 1977 and belongs to the Pioneer District which includes all of lower Michigan, most of upper Michigan and parts of Ontario. For many years it was home to the Heart of the Hills chorus. In January of 2013, the Macomb County chapter, original home to The Guardians of Harmony (GoH) moved to Rochester and merged with the chapter there.

The Guardians of Harmony were founded to offer a demanding and challenging musical experience with a commitment to excellence. As a testament to their commitment, the chorus won the 1990, 1998, 2002, 2005 and 2008 Pioneer District Chorus Championships and competed in the International Barbershop Chorus Contests in 1991, 1999, 2003, 2004, 2005, 2006 and 2007. In 2013 and 2014, they placed 2nd, winning their plateau both years. In 2015 they were awarded the "Most Improved chorus" and in 2016 the Guardians of Harmony once again became Pioneer District Chorus Champions!.

GoH is a non-profit organization actively supporting several charities, including Youth in Harmony and the Harmony Foundation, as well as music in schools and churches. Members come from all walks of life and join together for fellowship and singing in an atmosphere conducive to harmonious sounds.

They rehearse once a week on Thursdays from 7:00 to 10:00 PM at Oak Arbor Church, 495 Oak Arbor Cir W.