Fabian Izsa joined the Holy Name Cadets rookie corps in 1955, and marched in his first field show with the Holy Name Cadets of Garfield, NJ in 1958, playing second soprano. He was drum major in 1960, then returned to the horn line, playing lead soprano. He joined the Hawthorne Caballeros in 1967, marching with them until 1990, when he joined the marching instruction staff. He is a charter member of the Caballeros Alumni Corps, playing lead soprano, writing music, and writing and teaching drill. Earlier, in the 1970s, he taught music and drill to a number of corps and was also a marching and maneuvering judge.