Rhythm and Meter
Where the weight falls.
Rhythmic Displacement
- The idea
- Rhythmic displacement shifts a motif to a different position in the bar.
- Try this
- Bring a motif back one eighth note later than it first appeared.
- Example
- A figure that began on beat 1 now begins on the “and” of 1.
Syncopation
- The idea
- Syncopation places emphasis where the meter does not expect it.
- Try this
- In 4/4, start a note on the “and” of beat 2 and tie it over beat 3.
- Example
- Quarter, eighth, quarter, eighth, quarter. The third note starts on the “and” of 2 and holds through beat 3, so beat 3 has no new attack.
- Listen for it
- Joplin, The Entertainer
Hemiola
- The idea
- A hemiola regroups six beats as three groups of two where the meter implies two groups of three.
- Try this
- In 3/4, write three half notes across two bars.
- Example
- A pair of 3/4 bars holds six quarter beats. Grouped 2+2+2 as three half notes, they sound like one bar of 3/2.
- Listen for it
- Schumann, Symphony No. 3 (Rhenish), first movement
Polyrhythm
- The idea
- A polyrhythm sounds two conflicting rhythmic divisions at the same time.
- Try this
- Write a triplet melody over a steady accompaniment in two even notes per beat.
- Example
- The right hand plays eighth-note triplets, three to a beat. The left hand plays two eighth notes per beat (3 against 2).
- Listen for it
- Debussy, Arabesque No. 1
Ostinato
- The idea
- An ostinato is a short pattern repeated persistently while other parts change.
- Try this
- Repeat a two-bar rhythmic pattern while the harmony changes above it.
- Example
- Repeat quarter, two eighths, quarter, quarter under C and then Am and then F and then G.
- Listen for it
- Holst, The Planets, Mars
Additive Meter
- The idea
- Additive meter builds a bar from unequal groups of twos and threes.
- Try this
- Compose in 7/8 grouped 2+2+3 and make the grouping audible.
- Example
- Accent the first, third and fifth eighth notes, counting ONE-two THREE-four FIVE-six-seven.
- Listen for it
- Tchaikovsky, Symphony No. 6, second movement (5/4)
Metric Modulation
- The idea
- Metric modulation changes tempo by making a note value in the old tempo equal a different one in the new.
- Try this
- Let the quarter-note triplet of the old tempo become the new quarter note.
- Example
- At quarter = 60, quarter-note triplets move at 90 per minute. They become the new beat: quarter = 90.
Rhythmic Augmentation
- The idea
- Rhythmic augmentation restates a rhythm in longer note values.
- Try this
- Present a rhythmic phrase in quarter notes and then in half notes.
- Example
- Quarter–quarter–half (one bar of 4/4) becomes half–half–whole (two bars).
Silence as Structure
- The idea
- Rests placed regularly can define the phrase shape as clearly as notes.
- Try this
- Replace the last beat of every second bar with a rest.
- Example
- In 4/4: bar 1 four notes, bar 2 three notes and a quarter rest, repeated.
Cross-Accent
- The idea
- A cross-accent pattern places accents that conflict with the meter.
- Try this
- Stay in 4/4 and accent every third eighth note for two bars.
- Example
- Across sixteen eighths, accent numbers 1, 4, 7, 10, 13 and 16.
Other chapters: Motif and Melody · Harmony and Tonal Motion · Counterpoint and Voice Leading · Texture and Instrumentation · Form and Architecture · Expression and Narrative · Jazz and Contemporary · Electronic and Acoustic Design · Revision and Craft
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