Roger J. Folstrom, 77, a professor of music at the University of Maryland, where he also was a choral conductor for 20 years, died Oct. 17 at his home in Silver Spring. His wife, Jeanne C. Folstrom, said he had myelofibrosis, a bone-marrow disorder.

Dr. Folstrom joined the Maryland faculty in 1974 as chairman of the music education department. He conducted the University Chorale for 20 years and led the 40- to 60-voice group on tours of Europe 10 times.

He taught hundreds of students who became music teachers, mostly in Maryland.

After retiring in 2001, he continued to conduct and judge music contests for several years.

Dr. Folstrom also was director of the choir at St. Jane Frances de Chantal Catholic Church in Bethesda for about 20 years.

Roger James Folstrom was born in Fargo, N.D., and acquired a love of music from his mother, who played the organ at their church. He studied piano in his youth.

He graduated in 1956 from the University of St. Thomas in St. Paul, Minn., where he also received a master’s degree in music education. He then served in the Air Force.

He received a second master’s degree in music and, in 1967, a doctorate in music education from Northwestern University in Evanston, Ill.

Dr. Folstrom taught music in the Evanston public schools and, from 1966 to 1974, at the University of Wisconsin at Madison before coming to Maryland.

Beginning in 1992, Dr. Folstrom spent several summers in Lithuania working to improve music education and form a music teachers association.

A son, John G. Folstrom, died in 1989.

Survivors include his wife of 47 years, Jeanne Cosgriff Folstrom of Silver Spring; three children, James R. Folstrom of Fishers, Ind., Elizabeth A. “Lisa” Folstrom of Issaquah, Wash., and Sarah M. Zamudio of Danbury, Conn.; three sisters; and six grandchildren.

— Bart Barnes