Answer:
Hold these between your knees if you want to set a Cuban beat.
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
What binds two people yet touches only one?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?