The term "plagal cadence" refers to a chord progression where a subdominant chord resolves to a tonic chord. The spelling of this term can be a bit tricky due to the pronunciation of the word "plagal." In IPA phonetic transcription, it is pronounced /ˈpleɪɡəl/. The "g" is pronounced as a soft "j" sound, and the stress is on the first syllable. Therefore, the correct spelling is "plagal," not "plagle" or "plaijal." Proper spelling is important to accurately communicate musical concepts and ideas.
A plagal cadence refers to a type of musical progression that involves the movement from the subdominant harmony to the tonic harmony in a chord progression. It is often characterized by a sense of resolution and closure at the end of a musical phrase or section. The term "plagal" derives from the Greek word "plagios," which means "sideways" or "oblique."
In a plagal cadence, the subdominant chord typically precedes the tonic chord. The subdominant, often represented by the IV chord, is built on the fourth scale degree of the key, while the tonic, represented by the I chord, is built on the first scale degree. This movement from the subdominant to the tonic creates a harmonically satisfying and conclusive sound.
Plagal cadences are commonly found in various music genres, such as classical, gospel, and hymnals. They are often used to conclude musical phrases or to bring a sense of finality to a section of a composition. Due to their inherent sense of resolution, plagal cadences have a calming and soothing effect on the listener.
Overall, a plagal cadence represents a specific chord progression that contributes to the harmonic structure of a piece of music. It is characterized by the movement from the subdominant to the tonic, providing a sense of closure and resolution.
The word "plagal" originates from the Greek word "plagios", which means "sideways" or "oblique". In the field of music theory, a "cadence" refers to the melodic or harmonic progression that marks the end of a phrase, section, or piece of music. Therefore, a "plagal cadence" can be understood as a cadence that moves in a sideward or oblique manner. The term "plagal cadence" was coined in the late 19th century to describe a specific chord progression commonly found in Western music, where a subdominant chord (IV) is followed by a tonic chord (I) in a harmonic resolution.