No particular feelings one way or another - but I once heard a bodhran player start to join in with three women singing Babes in the Wood. At the time I thought the idea crass (and the singers soon gave him "the look") but now ... well, it's a very broad church out in folkspace, and such a combo might be thought of as innovative. Which reminds me of the Geiger Brothers (anyone remember them?) Gary on lead bodhran, Garth on rhythm bodhran, Glenn on bass bodhran and Jonathan Ague on drums. Their 'Shadows Walk" as priceless.