Little blurb on Mitch Easters experience recording with Dinosaur Jr/ J Mascis
Dinosaur Jr.
A pleasant, quick session in New York City where we did maybe three songs. J. Mascis played everything, and he was really quick—he knew what he was after. He obviously had a liberated view on how to work, which was enjoyable. For example, he did everything through one little Fender Super Champ amp, bass included—very smart. 
You can read the rest of the interview here