Chapter Playlist

In the previous chapter, Simple Meter and Time Signatures, we explored rhythm and time signatures in simple meters—meters in which the beat divides into two and further subdivides into four. In this chapter, we will learn about compound meters—meters in which the beat divides into three and further subdivides into six.

Listening to and Conducting Compound Meters

Compound meters can be duple, triple, or quadruple, just like simple meters. In other words, the beats of compound meters group into sets of either two, three, or four. The difference is that each beat divides into three divisions instead of two, as you can hear by listening carefully to the following examples:

• “End of the Road” (1992) by Boyz II Men is in a duple meter—the beats group into a two pattern. Tap along to the beat and notice how it divides into three parts instead of two. If you further divide the beat (by tapping twice as fast), you will feel that the beat subdivides into six parts.

• The second movement (Minuet) of Franz Joseph Haydn’s Sonata no. 42 in G Major (1784) is in a compound triple meter. Listen for the groupings of three beats, each of which divides into three. 
• Finally, a compound quadruple meter contains four beats, each of which divides into three. Listen to “Exogenesis Symphony Part III” (2010) by the alternative rock band Muse. This is in a compound quadruple meter; in other words, the beats are grouped into a four pattern.

In general, it is less common for music to be written in compound meters. Nonetheless, you must learn how to read music and perform in these meters in order to master Western musical notation.

Review the conducting patterns for simple meters in the previous chapter, as they are the same for compound meters.

Time Signatures

Measures in compound meters are equivalent to one beat grouping (duple, triple, or quadruple), just as they are in simple meters. However, the two numbers in the time signature express different information for compound meters. The top number of a time signature in compound meter expresses the number of divisions in a measure, while the bottom number expresses the division unit—which note value is the division. Example 1 shows a common compound-meter time signature.

Just like in simple meter, compound-meter time signatures are not fractions (and there is no line between the two numbers), and they are placed after the clef on the staff. In Example 1, the top number (6) means that each measure will contain six divisions; the bottom number (8) means that the eighth note is the division. This means that each measure in this time signature will contain six eighth notes, as you can verify by examining Example 1.

In compound meters, the top number is always a multiple of three. Divide this number by three to find the corresponding number of beats in simple meter: top numbers of 6, 9, and 12 correspond to duple, triple, and quadruple meters respectively. In compound meters, the bottom number is usually one of the following:

• 8, which means the eighth note receives the division.
• 4, which means the quarter note receives the division.
• 16, which means the sixteenth note receives the division.

The following table summarizes the six categories of meters that we have covered so far:

[table id=36 /]

Example 2. Categories of meters.

Counting in Compound Meter

While counting compound meter rhythms, it is recommended that you conduct in order to keep a steady tempo. Because beats in compound meter divide into three, they are always dotted. Beats in compound meter are as follows:

• If 8 is the bottom number, the beat is a dotted quarter note (equivalent to three eighth notes).
• If 4 is the bottom number, the beat is a dotted half note (equivalent to three quarter notes).
• If 16 is the bottom number, the beat is a dotted eighth note (equivalent to three sixteenth notes).

In simple meters, the beat divides into two parts, the first accented and the second non-accented. In compound meters, the beat divides into three parts, the first accented and the second and third non-accented. The counts for compound meter are different from simple meter, as demonstrated in Example 3, which is in [latex]\mathbf{^6_8}[/latex].

Example 3. Counting in a compound duple meter.

In this time signature, each measure has two beats (6÷3=2), indicating duple meter. Each dotted quarter note (the beat) gets a count, which is expressed in Arabic numerals, like in simple meter. For notes that are longer than one beat (such as the dotted half note in the fourth measure of Example 3), the beats that are not counted out loud are still written in parentheses. Divisions are counted using the syllables “la” (first division) and “li” (second division). As the final measure of Example 3 shows, further subdivisions at the sixteenth-note level are counted as “ta,” with the “la” and “li” syllables on the eighth-note subdivisions remaining consistent.

The third measure of Example 3 presents two of the most common compound-meter rhythms with divisions, so make sure to review this measure carefully if you are not familiar with compound meter.

Please note that your instructor may employ a different counting system. Open Music Theory privileges American traditional counting, but this is not the only method.

Example 4 gives examples of rhythms in (a) duple, (b) triple, and (c) quadruple meter. Just as with simple meters, compound duple meters have only two beats, compound triple meters have three beats, and compound quadruple meters have four beats.

Example 4. (a) Compound duple has two beats, (b) compound triple has three beats, and (c) compound quadruple has four beats.

Like in simple meters, beats that are not articulated because of rests and ties are written in parentheses and not counted out loud, as shown in Example 5. However, because dotted notes receive the beat in compound meters, dotted rhythms do not cause beats to be written in parentheses the way they do in simple meters.

Example 5. Beats that are not counted out loud are put in parentheses.

Counting with Division Units of 4 and 16

So far, we have focused on meters with a dotted-quarter beat. In compound meters with other beat units (shown in the bottom number of the time signature), the same counting patterns are used for the beats and subdivisions, but they correspond to different note values (Example 6).

Example 6. The same rhythm written with three different beat units: (a) dotted quarter, (b) dotted half, and (c) dotted eighth.

Each of these rhythms sounds the same and is counted the same. They are also all considered compound triple meters. The difference in each example is the bottom number—which note gets the division unit (eighth, quarter, or sixteenth), which then determines the beat unit.

Beaming, Stems, and Flags

In compound meters, beams still connect notes together by beat; beaming therefore changes in different time signatures. In the first measure of Example 7, sixteenth notes are grouped into sets of six, because six sixteenth notes in a [latex]\mathbf{^6_8}[/latex] time signature are equivalent to one beat. In the second measure of Example 7, sixteenth notes are grouped into sets of three, because three sixteenth notes in a [latex]\mathbf{^{\:6}_{16}}[/latex] time signature are equivalent to one beat. 

Example 7. Beaming in two different meters.

When the music involves note values smaller than a quarter note, you should always clarify the meter with beams, regardless of whether the time signature is simple or compound. Example 8 shows twelve sixteenth notes beamed properly in two different meters. The first measure is in simple meter, so the notes are grouped by beat into sets of four; in the second measure, the compound meter requires the notes to be grouped by beat into sets of six.

The same rules of stemming and flagging that applied in simple meter still apply in compound meter. For notes above the middle line, stems and flags point downward on the left side of the note, and for notes below the middle line, stems and flags point upward on the right side of the note. Stems and flags on notes on the middle line can point in either direction, depending on the surrounding notes.

Like in simple meters, partial beams can be used for mixed rhythmic groupings. If you aren’t yet familiar with these conventions, pay special attention to how the notes in Example 9 are beamed.

Example 9. The most common partially beamed variations with a division unit of the eighth note.

• Compound Meter Tutorial (musictheory.net) (compound meter starts about halfway through)
• Video Tutorial on Compound Meters and Beats (YouTube) (start at 1:49 for compound meter)
• Compound Meter Counting and Time Signatures (John Ellinger)
• Compound Meter Counting (YouTube)
• Compound Meter Rhythmic Practice (YouTube)
• Compound Meter Beaming (Michael Sult)

1. Meter Identification (Simple and Compound) (.pdf,), and with Bar Lines (.pdf)
2. Meter Beaming (Simple and Compound) (.pdf), and pp. 4 and 5 (.pdf)
3. Time Signatures (Simple and Compound) (.pdf)
4. Counting in 6/8 (.pdf, .pdf, .pdf)
5. Time Signatures (.pdf, .pdf, .pdf)
6. Bar Lines (.pdf), and p. 2 (.pdf)

1. Notes, Rests, Bar Lines (.pdf, .docx)
2. Re-beaming (.pdf, .musx)