As I said in my review, not only are the ‘basic’ sounds impressive - pianos, electric pianos and organs - but you also get a decent selection of synth tones from Casio’s archives (you’ll ...

[Mattia] decided that a spare key card might be good to have around, and that building it into his Casio F-91W watch would put the key as close at hand as it could be without getting an implant.