Lots of thanks, Dan, but I don´t understand "buy the bartender a drink" - you mean order a drink for me and pay him, or order a drink for him and pay elsewhere ?
Another doubt: the owners will probably speak Spanish, but the public in general, speaks English in an Irish place ?
It seems that they hold open mic sessions, but I'll keep silent for now. Later perhaps I ask for a recommended Irish song
Un abrazo - Andrés (ancestors from Finisterre, not very far from Eire !)