Concert organist and noted scholar, her specialty is matching the music to the instrument. She is a featured performer and speaker at conventions of the American Guild of Organists and the Organ Historical Society, and has concertized on famous pipe organs located throughout the United States and in Europe, including the Memorial Music Hall in Methuen and Mission Church in Boston; University Church in Chicago; the Church of St-Roch in Paris and the Basilica of St-Maximin in France; the Dom Church in Güstrow, Germany; Kallio Church in Helsinki, Finland; Kaarli Church in Tallinn, Estonia; and the Dom Church in Riga, Latvia. Her performances on several historic instruments are available on CD recordings.
Ms. Armstrong has gained international recognition as an authority on nineteenth-century American and French organists and organ music. She is a regular contributor to professional music journals. Her extensive research and writings on the life and works of Parisian organist and composer Felix Alexandre Guilmant have resulted in a busy schedule of concerts and lectures, with prominent appearances at Yale University and the University of Michigan. Her edition of the organ works of Ernest Chausson was recently published by the German firm of Forberg in Bonn. She was also the compiler and major contributing author of the bilingual commemorative book on Joseph Bonnet, published jointly in France by the Federation Francophone des Amis de l'Orgue and the Association Joseph Bonnet. During the 1999 Centennial tributes to esteemed French organbuilder Aristide Cavaillé-Coll, she presented her research on his organs for America at symposiums in the United States and in France.
Listed in the International Who's Who in Music and World Who's Who of Women, Agnes Armstrong is the recipient of numerous grants and awards. She holds advanced degrees in music from the State University of New York at Albany, the College of Saint Rose, and New York University, where presently she is a candidate for the Ph.D. degree in musicology.
In 1995 she was elected President of the International Reed Organ Society and is currently serving her third term. She has also served as Dean and District Convener for the American Guild of Organists, as well as State Chair of Organ and Harpsichord for the Music Teachers National Association. Since 1990 she has served on six faculties of the National Pipe Organ Encounter weeks for young organ students in Pennsylvania, Ohio, and Massachusetts. She serves as organist and choir director at both Saint John's Lutheran Church in Altamont and Helderberg Reformed Church in Guilderland Center, New York.