To answer your question specifically, I asked a work colleague who plays in a band and he told me of the following pubs which play traditional music:
The Brazen Head (
http://www.brazenhead.com or
http://www.dublinpubscene.com/thepub...razenhead.html)
O'Shea's - Opposite The Brazen Head (
O'Shea's hotel Dublin Ireland, O'Sheas Merchant hotel, hotels in Dublin Ireland)
The Celt on Talbot Street (
http://www.dublinpubscene.com/thepubs/thecelt.html)
Hughes on Chancery Place (
http://www.dublinpubscene.com/thepubs/mhughes.html)
That should keep you going
