I would like to mention a technique , which I thinks helps emphasis for Irish polkas., or any other music if so desired .
          I realised that I was putting emphasis in without thinking about it,hence my not giving it particular importance in my tutor,.
   A good exercise is to play the scale of g or d major[8 notes ascending],lets say all on the draw.making each note last two beats, but on the second beat give an extra pull with the wrist for emphasis. the same thing can be done on the scale when you are on the push, but this time pushing with the wrist. this can be altered to give emphasis on the first beat if so desired.I DO NOT REVERSE MY BELLOWS between each note,here others are entitled to disagree, but with this method I am able to get emphasis,the end product being lively dance music.
I am indebted to Rachel Hall for pointing out this oversight in my tutor. Dick Miles