Bergt is known as a symphonic and chorale conductor with a specialization in the music of J.S.Bach and other masters of the Baroque, Renaissance, Classical and Neoclassical periods. Tokyo’s Musashino Academia Musicae engaged Robert Bergt as orchestral conductor and graduate professor of chamber music in 1981 and again on a continuing basis from 1988 to 1995. Bergt was concertmaster and assistant conductor of the Saint Louis Philharmonic from 1949 to 1955.
He appeared as soloist with the Minneapolis Symphony in 1956.
In addition, he was first violinist of Ford Foundation Young Audiences String Quartet from 1960-1968. He also held the position of concertmaster with the Fort Wayne Philharmonic and Civic Orchestras.
In 1972 he conducted the American Kantorei in the opening concert of the National American Guild of Organists, Dallas, in performances of Bach"s Motets 1, 2, 5, and 6.