The Butler High School music department will present a free concert at 7:30 p.m. today at the senior high auditorium, 120 Campus Lane.

Students from the senior high choirs and orchestra auditioned before three judges for a solo spot in the concert. Fifteen musical numbers will be performed including pieces by the vocal jazz ensemble.

WORTHINGTON — The Worthington and West Franklin Volunteer Fire Department will hold its anything on wheels parts swap meet from 7 a.m. to 4 p.m. Saturday at the department, Linton and Cherry streets.For information, call 724-297-5542.

The following hunter and trapper education courses will be held in April.A Pennsylvania Game Commission hunter and trapper education course must be completed by all first-time hunters prior to purchasing a license. Independent study courses also are available to qualifying students, followed by classroom instruction in ethics and game laws, closing with an examination.• Hunter and trapper education course, 5:30 to 9:30 p.m. Friday and 9 a.m. to 5 p.m. Saturday, Evans City Sportsmen’s Club, 323 Textor School Road, Evans City• Classroom portion of independent study course, 6 to 8 p.m. April 16, Butler City Hunting and Fishing Club, Second Street, East Butler. All students must register online and complete the independent portion in advance of the classroom session.All classes being offered may be viewed at www.pgc.state.pa.us. Online registration is suggested and in some cases required. Visit the Game Commission Web site for information or to register.

CABOT — Quilter Patricia Knoechel, co-founder and owner of Creating With Color, will demonstrate her newest creations in the Quilt in a Day line including Night and Day, Lover’s Knot, How Charming and Fox & Geese from 12:30 to 3:30 p.m. Friday in the Concordia Social Hall in Haven I, 112 Marwood Road, Entrance 2.Call 724-352-1571, Ext. 8518, for information or reservations. The demonstration is free.

Representatives from the Pennsylvania Insurance Department will conduct an insurance seminar for seniors from 10:30 a.m. to 12:30 p.m. April 13 at the Butler Public Library, North McKean Street.Topics will include choosing a continued care community, long-term care insurance, annuities, and senior citizens and medicare recipients.This program is free, and registration is required. Call 724-287-1715 and ask for the reference desk to register or for information.

The Western Pennsylvania chapter of the Arthritis Foundation invites Butler County residents to discuss arthritis issues and care at noon April 15 or 3:30 p.m. April 16 at the Butler County Family YMCA, 339 N. Washington St.To register, call 412-566-1645, Ext. 1106 or send an e-mail to ltoy@arthritis.org.