Time signatures explained for parents and kids: what the two numbers mean

A time signature is the pair of numbers at the start of a piece of music, one above the other. The top number tells how many beats are in each bar. The bottom number tells which kind of note gets one beat. In 3/4 time, each bar has three beats, and a quarter note gets one beat.

A child feels a time signature before reading one. It is the count that makes a march different from a waltz.

Beats and bars

The beat is the steady pulse of the music. It is what a foot taps.

Beats come in groups. The first beat of each group is a little stronger than the rest. On the page, an upright line called a bar line marks off each group. The space between two bar lines is a bar, also called a measure.

The two numbers

The top number is the count of beats in a bar.

The bottom number names the note that gets one beat. A 4 stands for a quarter note. An 8 stands for an eighth note. A 2 stands for a half note.

Note values explained covers how long each kind of note lasts.

The four a beginner meets first

4/4 time. Four quarter-note beats in a bar. Count “one, two, three, four.” It is so common that it is also called common time, and it can be written as a large letter C. The “Ode to Joy” tune from Beethoven’s Ninth Symphony is in 4/4.

3/4 time. Three beats in a bar. Count “one, two, three,” with a lean on one. Waltzes are in 3/4. Try “Waltz of the Flowers” from The Nutcracker.

2/4 time. Two beats in a bar. Count “one, two.” It suits quick dances and marches. The Russian Dance from The Nutcracker is in 2/4.

6/8 time. Six eighth notes in a bar, in two groups of three. Count “one, two, three, four, five, six,” with a lean on one and four. The music rocks or skips. “Row, Row, Row Your Boat” is in 6/8, and so is “Morning Mood” by Grieg.

Why 6/8 is not the same as 3/4

Both bars hold six eighth notes, so they look alike on paper. They feel different.

In 3/4, the bar splits into three beats, and each beat splits in two. In 6/8, the bar splits into two beats, and each beat splits in three. Clap six even claps and stress them two ways: ONE two THREE four FIVE six for 3/4, and ONE two three FOUR five six for 6/8.

Other time signatures

Cut time, or 2/2. Two half-note beats in a bar. It is written as a C with a line through it. Many fast marches use it.

5/4 time. Five beats in a bar. It is rare, and it feels uneven on purpose. “Mars” from The Planets by Holst is in 5/4.

9/8 and 12/8 time. These work the way 6/8 does, with three or four groups of three.

A time signature can change partway through a piece. The new numbers appear on the staff at the place where the count changes.

How to find the beat by ear

Play a recording and tap along with one finger. Tap harder when the music feels strongest. Then count the taps from one strong tap to the next. If the count is two or four, the music marches. If the count is three, it sways.

It is hard to tell 2/4 from 4/4 by ear. Both march.

Games to play at home

March or waltz. Play a piece and try to march to it. If marching fits, the bar has two or four beats. If it feels wrong and swaying fits, the bar has three.

Strong beat stomp. Count the beats out loud together. Stomp on beat one and clap on the others.

Conduct it. Conductors draw a shape in the air for each bar. For two beats, the hand goes down, then up. For three beats, it goes down, out to the side, then up. For four beats, it goes down, in, out, then up. Beat one is always down.

Write it. Print blank staff paper or use the staff paper maker. Write a 3 over a 4 at the start of a line. Ask your child to fill four bars so each one adds up to three beats.

Use the metronome for kids to keep the beat steady while you count. For the other ideas a beginner meets, see music theory for parents.