Altered Chord: A chord that includes one or more notes that are altered from the standard chord structure, often used to create tension or dissonance in music.
Context and Significance
Altered chords play a significant role in jazz and contemporary music, providing a rich palette for harmonic exploration. These chords are typically used in improvisation and composition to add color and complexity. Jazz musicians often employ altered chords in chord progressions to enhance the harmonic interest and create a sense of tension that resolves into consonance. They are commonly found in piano, guitar, and ensemble arrangements, where musicians seek to push the boundaries of traditional harmony.
Historical Background
The use of altered chords can be traced back to the late 19th and early 20th centuries when jazz musicians began experimenting with new harmonic possibilities. As jazz evolved, the incorporation of altered chords became more prominent, reflecting the genre’s emphasis on innovation and individual expression. The development of altered chords coincided with the rise of modern jazz, where musicians sought to break away from classical constraints and embrace more avant-garde styles.
Examples
Altered chords are prevalent in the works of jazz legends like Thelonious Monk and John Coltrane. Monk’s piece “Round Midnight” features altered dominant chords, creating a distinct, moody atmosphere. Similarly, Coltrane’s “Giant Steps” utilizes altered chords to navigate complex chord progressions, showcasing his signature harmonic style. These examples highlight how altered chords contribute to the unique sound and emotional depth of jazz music.
Related Terms
– Diminished Chord: A chord with a minor third and diminished fifth, often used to create tension.
– Suspended Chord: A chord where the third is replaced by a second or fourth, providing a sense of suspension.
– Extended Chord: A chord that includes notes beyond the seventh, such as ninths, elevenths, or thirteenths, for added complexity.