Calaveras County Arts Council is hosting the Ovations Concert Series at the Brett Harte High School Dr. Elliot Small Performing Arts Center. Sunday Feb. 25 from 3 to 5 PM is T Sisters (Eclectic Folk Music) Sunday Mar. 24 from 3 to 5 PM is Grupo Falso Baiano (Brazilian Choro) Sunday Apr. 21 from 3