All Casio MIDI recording setup circa 1986 - Casio SZ-1, CZ-1000, and RZ-1
I think this is the first video on the Internet that features a Casio SZ-1 sequencer...? Anyway, here's a circa 1986 all Casio MIDI recording setup:
Casio SZ-1 = sequencer
Casio CZ-1000 = synth used in multitimbral mode
Casio RZ-1 = drum machine