a small device connected to an electronic instrument typically shaped like a trapezoid or rectangle usually made of metal or plastic may have knobs, switches or buttons may have an LED or LCD screen may have a cable connecting to the instrument may have an expression or volume pedal
pedal which is a small device connected to an electronic instrument pedal which typically shaped like a trapezoid or rectangle pedal which has usually made of metal or plastic pedal which may have knobs, switches or buttons pedal which may have an LED or LCD screen pedal which may have a cable connecting to the instrument pedal which may have an expression or volume pedal