Toni Taylor/Tiger Imagery

QUINCY — The Quincy Symphony Orchestra, directed by Bruce Briney, presents “American Horizons” at 2:30 p.m. Saturday, April 12, in Quincy Junior High School’s Morrison Theater. “American Horizons” is a salute to American composers, including regional composers Jeremy Beck, James Romig, Randall Faust and Aaron Copland. Music by Copland includes selections from The Tender Land…