The Treblemakers adult community chorus starts Sept. 7 and is welcoming new members. Rehearsals are Wednesdays from 7:30-9:30 p.m. at the Hopkinton Center for the Arts. Anyone interested in participating should attend the first rehearsal. For more information, email Treblemakers.Chorus@gmail.com, call 508-686-7347 or visit hopartscenter.org.