The number of beats in each measure and the kind of note chosen to represent the beat are
placed together as a fraction at the beginning of a composition. This is called the time signature.
For example:
4/4 time
A quarter note gets 1 beat. There are 4 quarter notes per measure.
3/4 Time
A quarter note gets 1 beat. There are 3 quarter notes per measure.
2/4 Time
A quarter note gets 1 beat. There are 2 quarter notes per measure.
3/2 Time
A half note gets 1 beat. There are 3 half notes per measure.
6/8 Time
An eighth note gets 1 beat. There are 6 eighth notes per measure.