American Classical Orchestra has announced that it will open its 2020-21 season on Nov. 17 with a program entitled “Chaconne.” The new showcase will be a two-part virtual program with musical performances by mezzo-soprano Guadalupe Peraza, violinists Karen Dekker and Chloe Fedor, gambist Arnie Tanimoto, theorbo player Charles Weaver, and ACO’s Artistic Director and Founder Thomas Crawford on harpsichord. The {…}