JazzJazz is a music genre that originated in the African-American communities of New Orleans, Louisiana, in the late 19th and early 20th centuries, with its roots in blues and ragtime. Since the 1920s Jazz Age, it has been recognized as a major form of musical expression in traditional and popular music. Jazz is characterized by swing and blue notes, complex chords, call and response vocals, polyrhythms and improvisation. Jazz has roots in European harmony and African rhythmic rituals.
Twelve-bar bluesThe 12-bar blues (or blues changes) is one of the most prominent chord progressions in popular music. The blues progression has a distinctive form in lyrics, phrase, chord structure, and duration. In its basic form, it is predominantly based on the I, IV, and V chords of a key. Mastery of the blues and rhythm changes are "critical elements for building a jazz repertoire". The blues originated from a combination of work songs, spirituals, and early southern country music. The music was passed down through oral tradition.
PolyrhythmPolyrhythm is the simultaneous use of two or more rhythms that are not readily perceived as deriving from one another, or as simple manifestations of the same meter. The rhythmic layers may be the basis of an entire piece of music (cross-rhythm), or a momentary section. Polyrhythms can be distinguished from irrational rhythms, which can occur within the context of a single part; polyrhythms require at least two rhythms to be played concurrently, one of which is typically an irrational rhythm.
Post-punkPost-punk (originally called new musick) is a broad genre of rock music that emerged in the late 1970s in the wake of punk rock. Post-punk musicians departed from punk's traditional elements and raw simplicity, instead adopting a broader, more experimental approach that encompassed a variety of avant-garde sensibilities and non-rock influences. Inspired by punk's energy and do it yourself ethic but determined to break from rock cliches, artists experimented with styles like funk, electronic music, jazz, and dance music; the production techniques of dub and disco; and ideas from art and politics, including critical theory, modernist art, cinema and literature.
TempoIn musical terminology, tempo (Italian, 'time'; plural tempos, or tempi from the Italian plural) also known as Beats per minute, is the speed or pace of a given piece. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and is usually measured in beats per minute (or bpm). In modern classical compositions, a "metronome mark" in beats per minute may supplement or replace the normal tempo marking, while in modern genres like electronic dance music, tempo will typically simply be stated in BPM.
No waveNo wave was an avant-garde music and visual art scene which emerged in the late 1970s in downtown New York City. The term was a pun based on the rejection of commercial new wave music. Reacting against punk rock's recycling of rock and roll clichés, no wave musicians instead experimented with noise, dissonance, and atonality, as well as non-rock genres like free jazz, funk, and disco. The scene often reflected an abrasive, confrontational, and nihilistic worldview. The movement was short-lived but highly influential in the music world.
