One of the songs we play in the Band Called Raaticoon, is in fact named "Polka Mazurka'. We play it in the key of Em The A part is a Muzurka And the B is a polka, We also play french songs that are part waltz and muzurkas. Please do not ask that I explaint the sutle diffrences ,for I do not read music,I only play as i hear it.