Well that was anticlimactic.
The child of musical beats is the tempo. You can only keep time if you have a good beat to guide you, like a father.
This is a jukugo word that uses the on'yomi readings of the kanji. You haven't learned this reading for 拍 yet, so here's a mnemonic to help you:
You get the tempo and the rhythm going in your body. You can't help but sing out loud, "Heyo (ひょう), heyo!" Feel that rhythm and sing with me! HEYO HEYO!