Gaston Nolet played a Quebec made MELODIE "A" on his Montmarquette tribute CD,
it was also MMH no low reed.
Of course it would be possible to play the music on an LMMH in "A" and a vast improvement in getting rid of the muddiness by closing the L stop.
Modern Quebec accordeonistes play Montmarquette tunes on D boxes..often with all four of the LMMH reeds.