correct, but neverthless they do,and many people are also encouraged to play in a certain way through the comhaltas examination system, now that is ok, if w the players then go on to develop their own style, and it is good in the sense that people are being encouraged to be creative, but unfortunately the influence of comhaltas,encourages people to play in the same style to win competitions.
   but it is not just the fault of Comhaltas, let us take concertina playing and the IRISH TRADITION, years ago people played whatever system of concertina they could lay their hands on,and there was much more variety in the playing, now ALL the teachers of irish music in ireland encourage the anglo, and there are very few[maybe 3OR 4 different approved styles]based upon Noel Hill, Mary Mac and Chris Droney, It was not always thus, back in the enlightened times there was even an all Ireland champion who played the English.
Where are the duets players in the irish concertina tradition, the duet[imo] is not unsuitable for irish tunes.
so we have a situation in irish traditional music, where only certain approved ornamentation is used,Furthermore players are told to get an Anglo to PARAPHRASE MandyRiceDavies "they would say that wouldnt they" Because they teach it
this can result in the tradition stultifying, and not progressing.
The Anglo is a good instrument for Irish music, but it has one drawback it is limited, because the phrasing is imposed upon the player by bellows direction, initially, the frequent bellows reversal seems like an advantage because it is inherently more rthymic, but it is limited because it cannot copy a fiddlers bowing.
The Unisonic concertinas are better for airs, But have the opposite problem to the anglo.
in English Northumbrian Music The unisonic Concertina use finger attack to produce staccato notes similiar to the northumbrian pipes, but this disapproved of by SOME of the irish anglo teachers as not authentic, there lies the problem so many players of irish trad music are so much up their own backsides[example, a few of the posters on www.session.org], they cannot see that they are preventing the music from changing ,or even occasionally they are so back ward looking they dont want to change it, the big joke is that Comhaltas with all their concerns about presrving the music have inadvertenly changed it through their stupid marking system in competitions