GD-20... Sort of] I've been building a guitar in the style of a Casio DG-20. Bought a cheap headless guitar kit and made a body out of a pine 2X12. : r/ casio
Casio DG-20. Japan 80`s Midi Guitar. Test Random general. Super Mario, Billie Jean, etc. - YouTube
Casio DG-20 Digital Synthesizer Guitar 1980s – Deep Tone Music
1980's Casio DG-20 Digital Guitar (Made in Japan) – Mojo Stompboxes
1987 Casio DG-20 Digital Guitar | MyRareGuitars.com