SquareZ
One need not be an anthropologist or a cultural historian to remark that social dancing these days seems to isolate the individual in a trance-like self-absorption which virtually disconnects him from the world and even from his partner.
--Quoted in Copeland & Cohen, "What is Dance"
Calling Ideas for June 18, 2012

June is:

National Accordian Awareness Month
National Accordion Awareness Month was established in 1989 to promote the accordion, help spread the word about the resurgence in popularity in the accordion and to educate people about the accordion. Here's some info.

I'm sure there are bunches of (old) square dance records that feature the accordian. I tend to associate MacGregor with accordian arrangements.