Imagine you can’t talk, you have no words to say, you don’t know if you could say them even if you were able.
But you can hear, you can feel, you can make sense of a happy tune, you can tap a rhythm and hear it echoed back to you.
In this way, you can communicate, you can influence someone else, and respond to them as they respond to you.
You can be loud and angry, or quiet and gentle, whatever you feel at that moment. And then you can travel on a journey of sound as you play together, rising and falling in melody and tempo.