Mary....The Cobbler Hotel used to have country dance music for the "towrists",but its sort of fallen out of fashion.
Traditional folk music has never been common on the West Coast.
In my youth the big thing was Scottish Country Dances. There were plenty of great bands about, and every village had a dance at least once a week.
I still remember the feeling of excitement,walking to the hall,the nearer you got,the louder the music and cries of the dancers became.
After a few drams everybody had a great time. The dances usually went on from 8:00pm till 2 or 3 in the morning.
The scenery round Arrochar is spectacular, they call the mountains "the Arrochar Alps".Try to get down by Cowal and see Loch Eck ,another beatiful spot,and most importantly enjoy your stay.
I hope you get to love the place half as much as I do ....Ake