Harmonic rhythm is the rate of harmonic change. According to Joseph Swain (2002 p.4) it "is simply that perception of rhythm that depends on changes in aspects of harmony." According to Walter Piston (1944), "the rhythmic life contributed to music by means of the underlying changes of harmony. The pattern of the harmonic rhythm of a given piece of music, derived by noting the root changes as they occur, reveals important and distinctive features affecting the style and texture."
Alexander Scriabin's music features an increasingly slow harmonic rhythm beginning in his middle period.
Source
- Swain, Joseph P. (2002). Harmonic Rhythm: Analysis and Interpretation: Analysis and Interpretation. ISBN 0195150872.
