Gentle Christmas tunes: Pianist and Shaker Heights native Jim Brickman performs “A Joyful Christmas” at 7:30 p.m. at Severance Hall in Cleveland. Tickets are $37 to $77 at clevelandorchestra.com.

City celebration: The Akron City-Wide Kwanzaa begins today. For details, visit www.facebook.com/events/2215749795354346. Kwanzaa is an African-American and Pan-African holiday that celebrates family, community and culture and is celebrated from Dec. 26 to Jan. 1. It builds on the five fundamental activities of Continental African "first fruit" celebrations: in gathering, reverence, commemoration, recommitment and celebration. Today's event is Umoja (Unity) at 6 p.m. at the Summit Lake Community Center, 380 W. Crosier St., Akron. It is hosted by Students With A Goal and the Kwanzaa Committee.

Festive decorations: Stan Hywet’s Deck the Hall holiday display is open from 5 to 8 p.m. The Manor House and the grounds are garlanded with more than 1 million lights and the rooms are full of decorations. Tickets are $18, $7 youths Sunday to Thursday; $22, $9 youths Friday and Saturday. www.stanhywet.org, 330-315-3287.

Science fun: The Great Lakes Science Center Winter Wonder Days run through Dec. 30 at the Great Lakes Science Center, 601 Erieside Ave., in Cleveland. The event includes the CryoBlast Big Science Show and the Fire and Ice Big Science Show, Water WonderLAB, an engineering design challenge inspired by the popular game “Fortnite,” a carpet skating rink and more. For more information, go to http://greatscience.com/.