The "Sunday School" stage at Electric Zoo has been a mainstay for old-school house and techno heads since the festival debuted in 2009. The stage is known for its more underground feel, featuring house and techno styles that can sometimes be harder to find at a big festival. The idea is that fans will be "schooled" by some of the most-respected names in the scene, such as Carl Cox and Danny Tenaglia, as well as "unsung underground heroes."

"In a festival atmosphere, people usually want to...