Since 1982, he has worked full time for Hal Leonard Corporation in Milwaukee, Wisconsin and is currently Director of Band Publications. In addition, he contributes as a composer and arranger in all instrumental areas. Michael is particularly known for his writing at the younger levels for concert band and jazz, and has over 500 publications to his credit. His works appear on numerous state contest lists and his music is regularly performed throughout the world. An ASCAP award-winning composer, his "Ancient Voices" (1994) and "Imperium" (1992) are analyzed in music education texts from GIA Publications.
Mr. Sweeney is also in demand as a clinician and conductor for honor bands and music festivals.