The band Anamanaguchi out of New York program music onto a NES cart and rock out along with the 8bit track.
“They program their own songs using sounds that are able to be made by the NES. They put it on a chip, they put the chip into a custom NES cartridge, and then they run the audio out on the NES into speakers. When they don’t want to use the NES they emulate it on a laptop.”
