But I think I’d even more want to have one for the NES. Does one exist?
Edit: the video actually demoed samples that sounded like NES, so maybe that’s included. Either way, I’m supporting this — super cool, and I would love to be able to tinker with songs using authentic samples from SNES.
Though if you're serious about using it for music production, I recommend popping the CPU out and dropping it into a dedicated board so you're not dealing with stuff like cartridge grime issues in a studio: https://github.com/jareklupinski/standalone-nes-synth
Also, many SF2 soundfonts for SNES games already exist and use authentic samples. The SNES adds a low pass filter, which you can approximate with EQ, and it has an echo effect that can be replicated with a short delay.