The only town on Loch Lomond
with a name that sounds like that
that I know
doesn't have an r in the spelling.
Here it is in googlemaps, could you check if this is the place?

https://maps.app.goo.gl/zDKND

When I looked for organised\publicised music round there a couple of years ago I don't think I found anything within about forty miles(Dunoon I think).

Do you know what time of year you'll be there?
How far are you prepared to travel for the evening?