an Entity references as follows:
The Casio AZ-1 is a polyphonic MIDI keyboard in the form factor of a keytar. It has a distinctive white body with a long neck, with detailing in a pale blue. This instrument is designed to be played, with the aid of a shoulder strap, in an approximation of an electric guitar. As were many keytars, it was geared towards keyboardists who wanted greater freedom of movement during performances.