Over more than 40 years, this San Francisco–-based foursome has performed works by a diverse array of composers——from Ornette Coleman to Sigur Ros to Bela Bartok. In addition, they have collaborated with performers throughout the musical world—: a Bollywood vocalist, an Inuit throat singer, and a Mexican rock band. Join host Sarah Cahill for an interview with the members of Kronos Quartet and composer Sahba Aminikia.