Mr. Seoane, the son of a restaurateur and a homemaker, was born in Tampa, Fla., and raised in Pontiac, Mich. After graduating from Pontiac High School in 1945, he enlisted in the Navy, where he played saxophone in the Navy Band.
After being discharged, he enrolled at Kenyon College, where he earned a bachelor's degree in 1950 in political science. He was recalled during the Korean War and served with the Navy in Bermuda until being discharged in 1952.
He later studied at the University of Michigan School of Business before heading to New York City, where he hoped for a career as a professional musician.
In 1955, Mr. Seoane moved to Baltimore and went to work for Mead Paper Co., and then joined White-Rose Paper Co. as a sales representative.
During his 40-year career, he was promoted to vice president of sales and general manager. He retired in 1994. He had been president of the Printing Industries of Maryland.
Mr. Seoane maintained an interest in music and was a member for years of The Tired Businessmen, a Dixieland jazz band that played for years at the old Dutch Mill on Harford Road.
In addition to playing at private functions, he also played at the Annapolis Yacht Club and the Millrace Tavern.
Mr. Seoane also taught a jazz class at the Renaissance Institute at the College of Notre Dame of Maryland, and was planning to teach a course on classic Hollywood musicals of the 1930s, 1940s and 1950s before he became ill.
He was a communicant of Nativity of Our Lord Roman Catholic Church in Timonium, and was a daily parishioner at Immaculate Conception Roman Catholic Church in Towson.
A Mass of Christian burial was offered Thursday at St. Mary of the Assumption Roman Catholic Church in Govans.
Surviving are his wife of 51 years, the former Margaret M. Cecil; a son, Peter J. Seoane of Boston; two daughters, Lisa Fazio of Middle River and Mary Claire Finnegan of Lutherville; a brother, Charles S. Seoane of Tampa; a sister, Rose Marie Seoane of Waycross, Ga.; and five grandchildren.

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