Sequence (music)
In music, a sequence is the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice.[1] It is one of the most common and simple methods of elaborating a melody in eighteenth and nineteenth century classical music[1] (Classical period and Romantic music). Characteristics of sequences:[1]
For the unrelated genre of Gregorian chant, see Sequence (musical form). For the means of triggering musical notes, see Music sequencer.
It is possible for melody or harmony to form a sequence without the other participating.
There are many types of sequences, each with a unique pattern. Listed below are some examples.
Harmonic sequences[edit]
Descending fifths[edit]
Descending fifths sequences, also known as "circle of fifths" sequences, are the most commonly used types of sequences,[5] singular extended in some works of Claudio Monteverdi and Heinrich Schütz.[6] It usually consists of a series of chords whose bass or "root" notes follow a pattern of descending fifths (or ascending fourths).
For example, if a descending fifths sequence in C major starts with the note C, the next note will be F, a perfect fifth below the first note. The next few notes will be B, E, A, D and so on, following a pattern of descending fifths.[7]