For the past two years at our annual crawfish boil, we have had a great local cajun band (Maison Bleue) play for the 75-100 folks that come out for the party. They set-up in the garage and play for about three hours.
This is not quite the 'bal de maison' you mentioned, but it sure is nicer than any of the dance halls in this area, and the food is real improvement over local grub as well.
we play as a fiddle and guitar duo and have had some great house dances! recently, we played a birthday party. the people moved all the furniture outside and we had them dancing like crazed weasels for hours and hours. we had been contracted to play 3 hours, i think we ended up playing 5 hours. granted, the accordion is a great rhythm instrument, but i am always amazed what we can put out with guitar and fiddle. definitely the best gigs and we are trying to drum up some business that way. the perfect cure for cabin fever!!!
roger