Well, I think it would not be traditional if we didn't question it's provenance by asking:

yes but is it traditional?

eg - how old is the bodhran? - and can you prove it? - see mudcat thread on the age of the Bodhran and a myriad questions like is "Molly Malone" really Scottish and Victorian? (and there is a thread on that too, and NO I won't tell you the answer)