Exodus 15:20

Notwithstanding they hearkened not unto Moses, they again became guilty of stubborn disobedience; but some of them left of it until the morning, and it bred worms and stank; the tiny maggots that developed caused a rapid decay. And Moses was wroth with them, on account of their stubbornness.

And Miriam, the prophetess, the sister of Aaron, who from now on takes her place at the side of Aaron under the leadership of Moses, although she was endowed with prophetic gifts, took a timbrel, a tambourine, in her hand; and all the women went out after her with timbrels and with dances, in a stately, solemn religious dance, with marching and singing in unison.