We have changed how we collect and accept calendar information. Readers must now submit all items through our website. Go to events.contracostatimes.com. Click on "submit your event." You'll have to register at this point, and enter your event. You do not have to pay. Submitting your event in this way will ensure it is part of our easy online searchable database, as well as a candidate for space in our publications.

Winter Celtic Concert. Chris Waltz and Shelly Crouse-Monarez perform a blend of Celtic, Spanish-Separdic and modern Flamenco music sung in Irish/Gaelic, Latin, Ladino and English. There will be haunting Irish laments, fun drinking songs and driving fiddle tunes on guitar, fiddle, Irish flute and Irish tin whistle--along with some old holiday carols from Ireland. 2 p.m. Dec. 28. Albany Library, 1247 Marin Ave. Free. 510-526-3720, www.facebook.com/AlbanyCALibrary.

Yale's Society of Orpheus and Bacchus. From classical to jazz, Yale's Society of Orpheus and Bacchus, the second-longest-running a cappella group in the nation, carry on an exceptional tradition of male voice singing with a unique sense of humor and fun. 6 p.m. Jan. 5. Unitarian Universalist Church of Berkeley, One Lawson Road, Kensington. $10 - $15. 510-525-0302, www.uucb.org.

Redwoods: Hope in a Changing Climate. Dr. Emily Burns, science director for Save the Redwoods League, speaks about the history and more of the iconic coast redwoods, the world's tallest trees, which date back to the time of the dinosaurs. Also, learn how to collect important scientific data while just taking a redwood-forest walk. 7 to 9 p.m. Jan. 6. Albany Community Center Edith Stone Rm., 1249 Marin Ave. Free. Seating limited. 510-848-9358, www.fivecreeks.org.

El Cerrito Garden Club. The January meeting of the El Cerrito Garden Club features speaker Lindsey Jones, Certified Aesthetic Pruner, Aesthetic Pruners Association, speaking on "Demystifying Fruit Tree Pruning." 9:30 a.m. Jan. 9. El Cerrito Community Center, 7007 Moeser Lane. Free members. $3 guests. 510-233-9365, 510-559-7000, www.el-cerrito.org/recreation.

Albany Library Storytime. Stories, crafts and songs for 3-5 year olds and their families. 11 a.m. Saturdays. Albany Library, 1247 Marin Ave., Albany. Free. 510-526-3720.

Albany Library Game Day. Play Wii games like Guitar Hero, bowling or tennis, or board games such as Monopoly, Blokus, Life, Connect 4, checkers, chess, Mankala, and Trouble. Bring friends or come by yourself. Drop in. No registration required. 1 to 4 p.m. Saturdays. Albany Library, 1247 Marin Ave., Albany. Free. 510-526-3720.

Japanese Story Time. Read Japanese picture books, sing Japanese songs and make Japanese-inspired crafts. 4 p.m. Saturdays. Albany Library, 1247 Marin Ave., Albany. Free. 510-526-3720, www.aclibrary.org.

World Affairs/Politics Group. Weekly meeting open to all folks 55 and older who want to discuss the week's events and what we want to do about any of them. 9:30 to 11 a.m. Mondays. Albany Senior Center, 846 Masonic Ave., Albany. $3 Albany residents. $4 non-residents. 510-524-9122, www.albanyca.org.

Albany Library Knitting. Work on your own project or make pet blankets and children's hats to be donated to charity organizations. No registration necessary. Yarn and needles provided for charity projects. 3:30 to 5 p.m. Mondays. Albany Library, 1247 Marin Ave., Albany. Free. 510-526-3720.

Stories and Song. Stories, songs, lullabies and more for young children and their families to cuddle to and get ready for bedtime. 6:30 p.m. Tuesdays. Kensington Library, 61 Arlington Ave., Kensington. Free. 510-524-3043, ccclib.org.

Babies & Toddlers Storytime. Two 20-25 minute long storytimes are packed full of lively stories, songs, and action rhymes for young children and their parents/caregivers. 10:15 and 11:15 a.m. Thursdays. Kensington Library, 61 Arlington Ave., Kensington. Free. 510-524-3043, ccclib.org.