He is the brother of philosopher Alvin Plantinga and theologian Cornelius Plantinga .
Having served as a faculty member of the Department of Music at Yale University from 1963 to 2005 , he is now a member of the emeritus faculty .
member is the member of philosopher Alvin Plantinga and theologian Cornelius Plantinga .
Having served as a faculty member of the Department of Music at Yale University from 1963 to 2005 , he is now a member of the emeritus faculty .