Background
Gretz, Ronald John was born on October 17, 1944 in Baltimore. Son of Charles William and Ida May Gretz.
Gretz, Ronald John was born on October 17, 1944 in Baltimore. Son of Charles William and Ida May Gretz.
Bachelor of Music, Peabody Conservatory, 1966. Master of Music, Peabody Conservatory, 1968.
Teacher Brunswick School, Greenwich, Connecticut, 1968—1969. Instructor Harford Community College, Bel Air, Maryland, 1969—1971. Director admissions Peabody Conservatory, Baltimore, 1971—1972.
Professor music Community College Baltimore, since 1972. Conductor, artistic director Annapolis Opera, since 1985. Opera coach Peabody Conservatory, 1992—1996.
Conductor Gettysburg Symphony, Baltimore, 1993—2003. Conductor, founder Maryland Philharmonic Orchestra, Baltimore, since 2004.
Organist, choir director University Baptist Church, since 1989.