BazzLow
Module 11 · Lesson 4

Compound meter

Read and feel 6/8, 9/8 and 12/8.

Before this lesson: 11.3 Triplets · 2.3 Bars and time signatures

In 4/4 and 3/4 every beat divides into two. In some music every beat divides into three, and the whole bar feels different.

Beats that divide in three

In compound meter each beat is a dotted note that divides into three. In simple meter (lesson 2.3) each beat divides into two. With 8 at the bottom and 6, 9 or 12 at the top, the meter is compound, and the beat is a dotted-quarter beat.

The common compound time signatures.
Time signatureBeats per barEach beatEighths per bar
6/82dotted quarter6
9/83dotted quarter9
12/84dotted quarter12

Count 6/8 as “1 & a 2 & a” (two beats), or slowly as 1–6 with accents on 1 and 4.

3/4 against 6/8

Both bars hold six eighth notes, grouped differently: 3/4 is 3 beats of two eighths (1 & 2 & 3 &); 6/8 is 2 beats of three eighths (1 & a 2 & a). The accents tell them apart.

Rhythm lineOne bar of 3/4: six eighth notes beamed in pairs, counted 1 & 2 & 3 & with the three beat numbers in bold.341&2&3&
One bar of 3/4: six eighth notes beamed in pairs, counted 1 & 2 & 3 & with the three beat numbers in bold.
Rhythm lineOne bar of 6/8: the same six eighth notes beamed in threes, counted 1 & a 2 & a with the two beat numbers in bold.681&a2&a
One bar of 6/8: the same six eighth notes beamed in threes, counted 1 & a 2 & a with the two beat numbers in bold.

12/8

12/8 sounds like 4/4 with every beat divided in triplets. It is common in slow blues and soul ballads.

Rhythm lineOne bar of 12/8: twelve eighth notes beamed in four groups of three, counted 1 & a 2 & a 3 & a 4 & a.1281&a2&a3&a4&a
One bar of 12/8: twelve eighth notes beamed in four groups of three, counted 1 & a 2 & a 3 & a 4 & a.

Odd meters (5/4, 7/8…) exist and are used in some styles. They are outside this course.

Try it

Play six eighth notes on the open D, first accenting 1, 3 and 5 (3/4), then 1 and 4 (6/8). Keep the eighths identical: only the accents change.

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