I've been there twice on monday. It's open mic, really nice place, they call it "The Candle Club", the light is really low and there are candles in every table, the atmosphere is great.
There is a funny/weird guy that plays the little piano or organ or whatever, and sings hippie songs, I hope he will be there next time hahaha
The Candle Club ends at 11, but they close the pub at 12 if im not wrong. It's worth trying, if you like live music.