Hi Danna.

I'm just adding to Audiotrack's and DrDan's excellent explanations.

While there are many different times signatures in everyday music, these can all be grouped into basically two main pulse beats. These are called "Simple" and "Compound" time signatures.

Simple time signatures are based on a pulse a note's beat (e.g. 2/4, 4/4, 3/2, etc).
Compound time signatures are based on a pulse of a dotted-note's beat (6/8, 12/8, 6/4, etc). The dot after the note means that the note's total length is 1½ the time of note's value.

The webpage below is worth having a read through.
https://www.musictheory.net/lessons/15


MY SONGS...
Audiophile BIAB 2025