Singing, unaccompanied by musical instruments, has been part of the heritage of English-speaking peoples for centuries, and nobody showcases the rich history of this form like Oak, Ash & Thorn, in great show replete with memorable choruses, irreverent humor, and rich harmony. The group's songs come from England, Scotland, Ireland, Wales, Australia, and America, and include working songs, drinking songs, sea chanteys, love songs, renaissance ballads, and more. The popular trio, which has delighted audiences across the United States and Britain for more than 20 years, will present numerous old gems, especially songs from its most recent CD, Old Enough to Drink, a live album recorded at venues around the East Bay including the Freight.