Trombonist Ronald Barron will be the featured guest artist at the Concord Band's 40th Anniversary Concert on March 6, 1999. Mr. Barron has been the Principal Trombonist with the Boston Symphony Orchestra since 1975. He joined the BSO in 1970, after being a member of the Montreal Symphony Orchestra. He also served as Principal Trombonist with the Boston Pops Orchestra for thirteen seasons. Mr. Barron is a graduate of the College Conservatory of Music of the University of Cincinnati, where he studied with Ernest Glover. In 1974, Ronald Barron shared the highest prize awarded at the Munich International Competition. Mr. Barron is a frequent soloist with the Boston Pops Orchestra and has appeared with a number of New England area orchestras and bands. He is currently a faculty member at Boston University and the Tanglewood Music Center. In addition to numerous recordings with the Boston Symphony and Boston Pops Orchestras, Mr. Barron has recorded and performed in concert with the Canadian Brass, the Empire Brass and the Summit Brass, and has three successful solo record ings.