Viola da gamba master Jordi Savall leads his ensemble Le Concert des Nations in a performance at Carnegie Hall's Zankel Hall on Apr. 16, 2015. AJ Wilhelm for NPR hide caption

itoggle caption AJ Wilhelm for NPR

"I'm more and more coming to the idea," composer Philip Glass says, "that it's the lineage and the connection to the past and the connection to the future — that is the real connection." Eamonn McCabe/Redferns hide caption

itoggle caption Eamonn McCabe/Redferns

Timpani are also called kettledrums. These instruments crafted by Antonio Stradivari were, for a time, more kettles than drums. DEA Picture Library/De Agostini/Getty Images hide caption

itoggle caption DEA Picture Library/De Agostini/Getty Images