Dr. Armstrong is widely recognized for his work in the area of youth and children’s choral music. He served for over twenty years on the summer faculty of the American Boychoir School, Princeton, New Jersey and held the position of Conductor of the St. Cecilia Youth Chorale, a 75 voice treble chorus based in Grand Rapids, from 1981-1990. He is the founding conductor of the Troubadours, 30-voice boys’ ensemble of the Northfield Youth Choirs since 1991. He currently serves as a member of the Board of Trustees of the American Boychoir School, the Board of Chorus America and the Board of Choristers Guild. In June 1998, he began his tenure as founding conductor of the Oregon Bach Festival Stangeland Family Youth Choral Academy.
Anton Armstrong has conducted the St. Olaf Choir in critically acclaimed solo concert performances at the 59th National Conference of the Music Educators National Conference in April 2004, the Sixth World Symposium on Choral Music in August 2002, and at the 1999 National Convention of the American Choral Directors Association in Chicago, Illinois. In February 2005, The St. Olaf Choir shared the stage with the Mormon Tabernacle Choir in presenting the finale concert for the national conference of the American Choral Directors Association at the new Walt Disney Hall in Los Angeles, California.