What is dichotomy? Who can tell me about it?

Did you ask two questions or have the wrong number?

Does dichotomy mean notes? Take a quarter note as a beat. There are four beats in each bar =4/4 beats.

Have you studied fractions? Dichotomy = two quarter notes. Quarter notes = two eighth notes. In fact, it is the relationship between mathematics and duration.

Two cakes. You're wearing those two lenses. Like two sesame cakes. So I call you two cakes.

And ... hey, hey ... there are two balls under you. So one is called two balls. Ha ha.