The Davis Senior High School Advanced Treble Choir (ATC) of Davis, California, is a women’s choir founded in 2001, composed of over 30 student singers and a student accompanist.  Under the direction of Dr. Karen Gardias and selected students, the choir sings music from many different genres, ranging from madrigals to Mo-Town. 

Since it was founded, ATC has grown in size and caliber while increasing its reputation for musical excellence.  Through performances and other activities, the chorus provides cultural, educational and social enrichment, thereby making a positive contribution to its members and the community.

In addition to performing at concerts several times a year, the choir sponsors the Davis High and Davis Community Idol contests and performs community service in the Yolo and Sacramento county regions.