The Vibrato trainer comprises: a stem; an attachment assembly for securing said stem to a tuning peg of a musical instrument; and a base; a plurality of pads attached to said base to assure stable placement of said base against said musical instrument; one or more elastic bands attached to said base for securing said base to said musical instrument; and one or more guide posts for guiding the hand and wrist, said guide posts removably attached to said stem.In use the attachment means is attached to the tuning peg of a stringed instrument and the base is placed against the back of the instrument so that the stem is parallel and beneath the finger board of the instrument. So that guideposts contact the wrist to provide a physical reminder that the trainee's wrist is out of position.