I don't post many polkas (or any, really), but I do play them in the comfort of my home and at dances, and I do love them! They just aren't as interesting to me as the other types of tunes I play (bourrées, mazurkas, waltzes, etc.), so I leave them for others. A recent video by Melodeon.net doyen Clive Williams has had me rethinking this. His performance, below, of two polkas is a thing of beauty, with the left-hand adding tremendously to the colors of these fairly basic tunes.
For my other post on the elusive, well-played polka, check out Rikke van Ommeren.