Understanding Consonance and Dissonance in Music
- Maisie Loh
- Apr 11, 2023
- 3 min read

Consonance and dissonance are terms used to describe the relationship between two or more musical notes played at the same time. Consonance is the sense of stability or repose that is created when two or more notes are played together, while dissonance is the tension or conflict created when two or more notes are played together. These terms are not absolute and are subject to interpretation and individual preferences.
The origins of consonance and dissonance
The terms “consonance” and “dissonance” have been used in music theory for centuries and have been used in their roots in the ancient Greek concept of “harmonia”, which referred to the combination of musical intervals. In Western classical music, the use of consonance and dissonance has evolved over time and has been influenced by a variety of factors, including cultural, historical, and stylistic considerations.
What are consonant and dissonant intervals?
Consonant intervals are those that have a sense of stability and resolution. Examples of consonant intervals include the perfect fifth, the perfect fourth, and the major and minor thirds. These intervals have a sense of stability and resolution because the frequencies of the notes involved are close together and form a simple mathematical relationship.
Dissonant intervals, on the other hand, are those that have a sense of tension or conflict. Examples of dissonant intervals include the tritone (also known as the augmented fourth or diminished fifth), the minor second, and the major seventh. These intervals have a sense of tension or dissonance because the frequencies of the notes involved are farther apart and do not form a simple mathematical relationship.
The role of consonance and dissonance in music
The use of consonance and dissonance in music is a matter of artistic choice and can be used to create a wide range of emotional effects. For example, a composer might use consonance to create a sense of relaxation or resolution, while dissonance might be used to create a sense of tension or drama. Consonance and dissonance can also be used to create a sense of movement or forward momentum in a piece of music. For example, a composer might use dissonance to create a sense of tension, which is then resolved through the use of consonance, creating a sense of resolution and movement.
It's important to note that the use of consonance and dissonance is not limited to Western classical music and can be found in a wide range of musical styles and cultures. In fact, many non-Western musical traditions do not make the same distinctions between consonance and dissonance as Western music and may use different intervals and chord structures to create different emotional effects.
Consonance and dissonance are not exclusive to Western music
It's important to note that the use of consonance and dissonance is not limited to Western classical music and can be found in a wide range of musical styles and cultures. In fact, many non-Western musical traditions do not make the same distinctions between consonance and dissonance as Western music and may use different intervals and chord structures to create different emotional effects.
In summary, consonance and dissonance are terms used to describe the relationship between musical notes played at the same time. Consonance is associated with a sense of stability and resolution, while dissonance is associated with a sense of tension and conflict. The use of consonance and dissonance in music is a matter of artistic choice and can be used to create a wide range of emotional effects.
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