BRUNSWICK — The Celtic duo Castlebay will perform joyous and mysterious seasonal songs and tunes from Ireland, Scotland and the British Isles on Friday, Dec. 10, at Brunswick Unitarian/ Universalist Church.

Interspersed will be the lilting sound of Irish flute, Celtic harp, fiddle and guitar.

The celebration of the winter solstice was one of the most important in the calendar of the ancient people of the British Isles and Ireland. The word “yule” means “wheel” and symbolizes the turning of the sun-wheel. Many of the enigmatic circles of standing stones that rise from the windswept landscape are oriented to the solstice.

Celtic music is filled with the symbolism of light conquering darkness, rebirth and the evergreen power of life.

The concert will begin at 7:30 p.m. Tickets, $10, will be sold at the door. The church is at 15 Pleasant St. For more information, call 729-8515 or e-mail [email protected].