Arturo “Sauce” Gonzalez, one of the architects of San Antonio’s West Side Sound, has died of a heart attack, friends and family members confirmed Wednesday on social media. Gonzalez, 80, recorded keyboards on pioneering Chicano soul band Sunny and the Sunliners’ hit “Talk To Me” and took part in the group’s groundbreaking appearance on American Bandstand. He also accompanied bonafide music legends ranging from country singer Bobby Bare and Tejano legend Little Joe to Alamo City musical hero Doug Sahm.