Sandbox Percussion The San Antonio Chamber Music Society presents the Sandbox Percussion quartet in a concert on February 12, 2023, featuring contemporary and classical pieces written or arranged for the quartet. As musical leaders in contemporary music and percussion, Sandbox Percussion thrills audiences with outstanding visual and auditory performances along with unique interpretations of chamber music. More information about this concert may be found on the SACMS website, https://www.sacms.org/. $25 online or at the door (students and active military free).