If a song is called for it is essential to be absolutely silent. This is very difficult for Americans to understand and comply with. Some Irish people who aren't fans of Irish traditional music (diddly-di they call it) also have been known to be very rude on this point. But when the room is silent everyone, (including the pool players who also should stop for the song,) will be delighted with the beautiful melodies and stories that make Irish songs so great.