Do not doubt their musicianship for a single second. I just googled their band list and found this, though I can't vouch that will be the exact lineup at the concert.

Kelly Winter - Piano Accordion and Concertina
Eileen Gannon - Harp and Concertina
Ian Walsh - Fiddle and Mandolin
Kevin Buckley - Fiddle, Guitar and Bouzouki
Tommy Martin - Uilleann Pipes and Flute

At the moment I do not recognize the latter two, but the first three are well known to me and are all exceptional musicians.

Eileen Gannon's parents lead the St. Louis Arts group which has taught Irish music to countless area youngsters. Kelly Winter and Ian Walsh are among their prized pupils over the years.

If I were closer, I would consider the trip, but I expect I will have to wait until this summer when the St. Louis Irish Arts group makes their yearly visit to Mountain View, AR.