Ok Well this was interesting . The message back from Marshal B was that a Maggot dose not designate a type of dance or meter that the dance is played at, but is "A whimsey or a flight of fancy". Descriptive but <><> . Now in musical terms dose that mean a maggot is a more ornamented dance tune?
                              The OED also had the word described as a "perverse whimsy". Humm