Sequence

What is Sequence?

A sequence is a melodic technique where a motif or phrase is repeated at a higher or lower pitch, creating a sense of development and continuity in melody writing.

Types of Sequence

Tonal Sequence

• The intervals are adjusted to stay within the key signature.
• Example: A melody in C major might move from C-D-E to D-E-F instead of using accidentals.

Real Sequence

• The intervals are kept exactly the same, even if it moves outside the key.
• Example: A melody in C major could move from C-D-E to D-E-F# to preserve the intervallic structure.

Ascending Sequence

• The motif is repeated at increasingly higher pitches, building intensity and momentum.

Descending Sequence

• The motif is repeated at increasingly lower pitches, often creating a sense of relaxation or resolution.

How to Use Sequence in Melody Writing

1. Repeat the Original Motif: Start with a recognisable idea.
2. Change the Pitch: Move the repetition up or down by a step or interval.
3. Vary Rhythm (Optional): Slightly adjust note values to create interest.
4. Maintain Cohesion: Keep the essence of the motif while following the melodic contour.

Benefits of Sequence

• Cohesion: Connects different parts of the melody, ensuring fluency.
• Contrast: Ascending or descending sequences provide variety while remaining linked to the original idea.
• Development: Expands a simple motif into a richer, more complex idea.