And, in celebration of the 40th year of the Wallingford Chorus, the concert will feature the premiere performance of a new choral work, “The Lamp of Life,” by Christina Whitten Thomas.
Diaz McGee is leaving to pursue a number of projects, including recordings and compositions and the formation of a professional vocal and orchestral ensemble.
“I’m very grateful for my time with the chorus, and want to extend my appreciation to our devoted audiences for all the years of support,” said Diaz McGee in an e-mail message.
“I’m excited about the future, but I’m sad about leaving Wallingford,” said Diaz McGee, of Glastonbury, by phone the other day. “They’re my musical family.”
The chorus plans to begin a search for a long-term replacement in the spring, said Deborah Kellogg, president of the chorus board.
“We’re going to miss Theresa,” said Kellogg. “She’s a wonderful teacher, an absolutely wonderful teacher.”
The concert, which begins at 7:30 p.m. at the First Congregational Church on South Main Street, will include works that span the 40 years of the chorus, which started as the Wallingford Choral Society as part of the town’s tercentennial celebration in 1970.
Seasonal music will be performed, and the concert will end with an audience singalong of holiday favorites, Diaz McGee said. Also on tap are works by Brahms, Holst and Bach. Guest cellist Gabrielle Athayde will perform Bach’s Cello Suite No. 1 in G major.
The singers will be accompanied by Wallingford resident Sandy Antonelli, who has been the chorus pianist for all 40 years.
The work by Whitten Thomas was selected from a dozen entries for what was considered a unique way of celebrating the anniversary. The selection was made by a committee of three chorus members and an independent judge.
Diaz McGee said the concert’s theme is light — from stars and moonlight to thelamp in Whitten Thomas’s new composition.
“I think it’s something very evocative of the season and it spans very different traditions and ways of celebrating the holidays,” said Diaz McGee.
Whitten Thomas, a California composer who grew up in Holden, Mass., plans to attend the premiere performance.
“It’s nice to be able to go and have a premiere close to my hometown,” she said.
“It’s important to show up,” she said. “It will be meaningful to the choir and it’s meaningful for me.”
The text of “The Lamp of Life” is from a sonnet of the same name by Amy Lowell.
“We wanted something that was positive and uplifting and had depth to it, and something that the chorus could perform in a variety of different settings,” said Diaz McGee, a member of the committee that selected the commissioned work, “so it’s not a Christmas piece, or a winter piece, per se.”
Diaz McGee described working with the composer as “a dynamic process.” It’s the first time the chorus has commissioned a work since she’s been musical director, at least, Diaz McGee said.
“This type of process is not so easy,” she said. “It really is a living process and it’s exciting to work with a living composer.”