Evolution of Jazz Class 3-4

12-bar form

Common blues form with AAB format

Blue Note

Note that doesn’t fit the traditional 12-tone scale of Western Music

Blues

A genre of vocal music developed among African Americans and derived from field hollers, street cries, and gospel hymns

Changes

A term used to refer to chord progressions

Chord

Three or more notes sounded together

Chord progression

A series of chords that aims to establish tonality

Harmony

The sounding of two or more pitches together

Improvisation

Spontaneous composition of music in the moment of performance

Interval

The distance between two pitches in terms of letter-name notes

Pitch bending

A gradual change in pitch from one note to another

Polyrhythm

A combination of two or more rhythms sounding simultaneously

Swing Eighth note

An eighth note with a duration that is greater or smaller than half the duration of a quarter note

Swing Feeling

A term used to describe the groove or rhythm of Jazz music

Third

An interval of three letter-name notes.

Tonality

The musical language of traditional Western music, characterized by the tonic-dominant relationship

Tonic

A tonal center of key piece of music

Triad

A chord in which each note is separated from the next by a thrid