Yo La Tengo’s Ira Kaplan: “I’ve tried to challenge myself to solo in different ways, rather than just turn the distortion way up on the Rat, step on it, and go”

The beloved indie trio’s guitar-slinger reveals how he’s gradually warmed up to plugins, the magic of “old and rickety” DigiTech PDS pedals, and the fan-made drive unit that now occupies pride of place on his pedalboard