I must say I am very fond of the New York Celtic band Sorcha Dorcha. They do mostly traditional Irish Scotish Welsh and Breton music, with some native American tunes and songs, and modern ballads in the Irish tradition on the subject of everything from forced assimilation of Natives in Canada and resistance to Hydro Quebecs dams, to the murder of Gypsies in the Czech Republic. They have really impressed me over the past few months.
If you are in the New York area, you should catch them at Bagatelle, 12 Saint Marks Place, (8th street between 2nd and 3rd Ave) Every Wednesday night 8 -10:30 and Sunday 6 - 8:30
Larry Otway
(this has been a shameless comercial endorcement from Larry Otway, Uilleann Piper - Sorcha Dorcha)