Understanding Time Signatures And Meters: A Musical Guide

Reading the Time Signatures

The number of notes allowed in each measure is determined by the time signature. As you saw in the time signature examples above, each time signature has two numbers: a top number and a bottom number: 2/4 time, 3/4 time, 4/4 time, 3/8 time, 9/8 time, 4/2 time, 3/1 time, and so on. The bottom number of the time signature indicates a certain kind of note used to count the beat, and the top note reveals how many beats are in each measure. If you look at the American note names from the chart above, there is a fun little trick to it:

Take the 2/4 time signature for example - with the 2 on the top of the time signature you know there are 2 beats for one measure, and this leaves you with a fraction of 1/4—a quarter, the note-length the time signature is indicating to you then is a quarter note. Therefore, you know that there are two quarter notes worth of time in every measure:

Let’s try another one. In 9/8 time, you know that in every measure there are 9 notes in a 1/8 length.

How about in 4/2 time?

In 4/2 time, each measure has 4 notes of 1/2, so we have 4 1/2  notes:

Now try 3/1 time.

In 3/1 time, so we have 3 notes of a 1/1 length, so 3 whole notes!

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