Genesis 4:21

Harps and flutes are musical instruments. A harp has many strings. It produces sound when somebody touches the strings. A flute is a tube with holes. It produces sound when somebody blows air across one hole.

Lamech speaks proudly

v23 Lamech said to his wives,

‘Adah and Zillah, hear my voice.

My wives, listen to the words that I say.

I kill a man if he hurts me.

I kill a boy if he strikes me.

v24 If any person kills Cain, God will punish that person 7 times more severely.

But when a person hurts me, Lamech, I punish him 77 times more severely.’