Edirol was Roland’s software brand. SuperQuartet was part of the "HyperCanvas" family but focused on the rhythm section.
(Click on Edirol SuperQuartet UI. The ugly beige interface appears.) Voice: "Stop using modern grand pianos for your anime beats. Use this instead." edirol super quartet vst
Which is exactly why it’s the best piano VST for J-pop and City Pop. Edirol was Roland’s software brand