Corpus of Electronic Texts Edition
The Second Battle of Moytura (Author: [unknown])

section 164

Then the harp went forth from the wall, and kills nine men, and came to the Dagdae. And he played for them the three things whereby harpers are distinguished, to wit, sleep-strain and smile-strain and wail-strain. He played wail-strain to them, so that their tearful women wept. He played smile-strain to them, so their women and children laughed. He played sleep-strain to them, and the hosts fell asleep. Through that sleep the three of them escaped unhurt from the Fomorians though these desired to slay them.