Since you said it's (semi nws) I'll avoid a look see. But the wife loves doing her exercise routine. It's will give the grandkids something to do when they visit, and many of our friends are much younger than we are so no doubt it would be a lot of fun.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….