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Composer's Handbook

Motif and Melody

Small ideas that grow.

Motivic Cell

The idea
A motivic cell is a short, recognizable figure that a passage is built from.
Try this
Write a three-note idea and build eight bars from it and its variants.
Example
C–D–G and then D–E–A and then G–D–C and then C–D–G with a longer last note.
Listen for it
Beethoven, Symphony No. 5, first movement

Sequence

The idea
A sequence repeats a melodic pattern at a higher or lower pitch level.
Try this
Move a motif up one step within the key and then once more.
Example
In C major: C–D–G and then D–E–A and then E–F–B.

Inversion

The idea
Inversion turns a melody upside down: each interval keeps its size but changes direction.
Try this
Invert a three-note motif, keeping every interval size.
Example
C–E–D (up a major third, down a whole step) becomes C–A♭–B♭ (down a major third, up a whole step).

Retrograde

The idea
Retrograde presents a melody's notes in reverse order.
Try this
Write a short motif and then play it backward.
Example
C–D–G–E becomes E–G–D–C.
Listen for it
Machaut, Ma fin est mon commencement

Augmentation

The idea
Augmentation restates a melody with every note value lengthened, usually doubled.
Try this
Double the length of every note in a short melody.
Example
Eighth–eighth–quarter becomes quarter–quarter–half, with the same pitches.
Listen for it
Bach, The Art of Fugue, Contrapunctus 7

Diminution

The idea
Diminution restates a melody with every note value shortened, usually halved.
Try this
Halve the length of every note and keep the pitches in order.
Example
Half–quarter–quarter becomes quarter–eighth–eighth.
Listen for it
Bach, The Art of Fugue, Contrapunctus 7

Fragmentation

The idea
Fragmentation develops a theme by isolating and repeating a small part of it.
Try this
Take the first two notes of a longer phrase and use them as a recurring signal.
Example
From the phrase E–D–C–D–E–E–E, keep only E–D and repeat it at different pitches.

Intervallic Expansion

The idea
Intervallic expansion widens the intervals of a motif to raise intensity.
Try this
Widen one interval of your motif at the climax of the phrase.
Example
The rising second C–D becomes the rising fourth C–F at the high point.

Intervallic Contraction

The idea
Intervallic contraction narrows a motif's intervals to soften or close it.
Try this
Replace a large leap with a stepwise approach.
Example
The leap C–A becomes a stepwise rise C–D–E–F–G–A.

Melodic Climax

The idea
A melodic climax is the single highest or most intense point of a melody.
Try this
Place the highest note late in an eight-bar melody and then fall away.
Example
In C major, reach high E in bar 6 and descend by step to C in bar 8.

Other chapters: Rhythm and Meter · 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

Not every technique suits every style. Adapt it to your instrument and your music.

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