I love irish airs, but know they present a unique challenge.  Written music can be misleading as the dots on the page don't represent the words and breathing of a song, and it's probably best to listen to many versions of the chosen air, as they are sung, often unaccompanied. This is Sliabh na mban (pronounced, sleevnamane). I copied the phrasing of an irish  sean nos singer  I know that the use of a full vibrato is not desirable in irish airs, calling for a strong but simple melodic style, it is a lifelong journey and it is also true that when playing irish music generally, each time it should be approached afresh, so even now I probably would try and play this a little differently. This was summer 2016