My point was that the phrasing used by the musicians on the TV was too close to that (presumably) used by the musicians Alec would be familiar with.I fully appreciate that this was a theatrical production, not an attempt at historical reconstruction. I merely point out that, to make Alec's comments seem justified, they should have used music played in a more rough-and-ready "folky" attacking style, to contrast with his personality and social background. As is often the case in the use of trad music in a theatrical context, there is always a temptation to veer in either a Wicker Man, or a classical direction; or some combination of the two. Which sometimes works, but I felt it didn't here. The music was played very beautifully, but not in a way that justified Alec's reaction to it. I am making a purely theatrical judgement, nothing to do with authenticity or aesthetics.
As a theatrical musical director who has worked with Hardy music, I know some of the pitfalls, believe me!