This is a little bit tangential, but I used the OP-1 when contributing to this chrome extension https://chrome.google.com/webstore/detail/animal-crossing-music/fcedlaimpcfgpnfdgjbmmfibkklpioop
People familiar with the game should get a kick out of it.
The bell sound that plays the town tune every hour is a sample of the FM synth from the OP-1