Electronic music in the context of "Terry Riley"

A microgenre is a specialized or niche genre, often used to describe narrowly defined subcategories within music, literature, film, or art. The term has been in use since at least the 1970s, particularly in the context of music, where it refers to specific stylistic offshoots of prominent genres, such as the many sub-subgenres of heavy metal and electronic music.

Originally, microgenres were labels retroactively applied by record collectors and dealers, often to increase the perceived value of rare or obscure recordings. Early examples include Northern soul, freakbeat, garage punk, and sunshine pop.

Articulation is a musical parameter that determines how a single note or other discrete event is sounded. Articulations primarily structure an event's start and end, determining the length of its sound and the shape of its attack and decay. They can also modify an event's timbre, dynamics, and pitch. Musical articulation is analogous to the articulation of speech, and during the Baroque and Classical periods it was taught by comparison to oratory.

Western music has a set of traditional articulations that were standardized in the 19th century and remain widely used. Composers are not limited to these, however, and may invent new articulations as a piece requires. When writing electronic and computer music, composers can design articulations from the ground up.

Bassline (also known as a bass line or bass part) is the term used in many styles of music, such as blues, jazz, funk, dub and electronic, traditional, and classical music, for the low-pitched instrumental part or line played (in jazz and some forms of popular music) by a rhythm section instrument such as the electric bass, double bass, cello, tuba or keyboard (piano, Hammond organ, electric organ, or synthesizer).

In unaccompanied solo performance, basslines may simply be played in the lower register of any instrument while melody and/or further accompaniment is provided in the middle or upper register. In solo music for piano and pipe organ, these instruments have an excellent lower register that can be used to play a deep bassline. On organs, the bass line is typically played using the pedal keyboard and massive 16' and 32' bass pipes.

Musique concrète (French pronunciation: [myzik kɔ̃kʁɛt]; lit. 'concrete music') is a type of music composition that utilizes recorded sounds as raw material. Sounds are often modified through the application of audio signal processing and tape music techniques, and may be assembled into a form of sound collage. It can feature sounds derived from recordings of musical instruments, the human voice, and the natural environment, as well as those created using sound synthesis and computer-based digital signal processing. Compositions in this idiom are not restricted to the normal musical rules of melody, harmony, rhythm, and metre. The technique exploits acousmatic sound, such that sound identities can often be intentionally obscured or appear unconnected to their source cause.

The theoretical basis of musique concrète as a compositional practice was developed by French composer Pierre Schaeffer, beginning in the early 1940s. It was largely an attempt to differentiate between music based on the abstract medium of notation and that created using so-called sound objects (French: l'objet sonore). By the early 1950s, musique concrète was contrasted with "pure" elektronische Musik as then developed in West Germany – based solely on the use of electronically produced sounds rather than recorded sounds – but the distinction has since been blurred such that the term "electronic music" covers both meanings. Schaeffer's work resulted in the establishment of France's Groupe de Recherches de Musique Concrète (GRMC), which attracted important figures including Pierre Henry, Luc Ferrari, Pierre Boulez, Karlheinz Stockhausen, Edgard Varèse, and Iannis Xenakis. From the late 1960s onward, and particularly in France, the term acousmatic music (French: musique acousmatique) was used in reference to fixed media compositions that utilized both musique concrète-based techniques and live sound spatialisation.

Vaporwave is a microgenre of electronic music, an Internet aesthetic and meme that emerged in the late 2000s-early 2010s and became well known in 2015. It is defined partly by its slowed-down, chopped and screwed samples of smooth jazz, elevator music, R&B, and lounge music from the 1980s and 1990s, similar to synthwave. The surrounding subculture is sometimes associated with an ambiguous or satirical take on consumer capitalism and pop culture, and tends to be characterized by a nostalgic or surrealist engagement with the popular entertainment, technology and advertising of previous decades. Visually, it incorporates 1990s Web design and imagery, glitch art, anime, stylized Ancient Greek or Roman sculptures, Memphis Design geometric shapes, 3D-rendered objects, and cyberpunk tropes in its cover artwork and music videos.

Vaporwave originated as an ironic variant of chillwave, evolving from hypnagogic pop as well as similar retro-revivalist and post-Internet motifs that had become fashionable in underground digital music and art scenes of the era, such as Tumblr's seapunk. The style was pioneered by producers such as James Ferraro, Daniel Lopatin and Ramona Langley, who each used various pseudonyms. In 2010, Lopatin would release the influential cassette tape Chuck Person's Eccojams Vol. 1, which was later followed by Ferraro's Far Side Virtual. After Langley's album Floral Shoppe (2011) established a blueprint for the genre, the movement built an audience on sites such as Last.fm, Reddit and 4chan while a flood of new acts, also operating under online pseudonyms, turned to Bandcamp for distribution.

New-age is a genre of music intended to create artistic inspiration, relaxation, and optimism. It is used by listeners for yoga, massage, meditation, and reading as a method of stress management to bring about a state of ecstasy rather than trance, or to create a peaceful atmosphere in homes or other environments. It is sometimes associated with environmentalism and New Age spirituality; however, most of its artists have nothing to do with "New Age spirituality", and some even reject the term.

New-age music includes both acoustic forms, featuring instruments such as flutes, piano, acoustic guitar, non-Western acoustic instruments, while also engaging with electronic forms, frequently relying on sustained synth pads or long sequencer-based runs. New-age artists often combine these approaches to create electroacoustic music. Vocal arrangements were initially rare in the genre, but as it has evolved, vocals have become more common, especially those featuring Native American-, Sanskrit-, or Tibetan-influenced chants, or lyrics based on mythology such as Celtic legends.

Ambient music is a genre of music that emphasizes tone and atmosphere over traditional musical structure or rhythm. Often "peaceful" sounding and lacking composition, beat, and/or structured melody, ambient music uses textural layers of sound that can reward both passive and active listening, and encourage a sense of calm or contemplation. The genre evokes an "atmospheric", "visual", or "unobtrusive" quality. Nature soundscapes may be included, and some works use sustained or repeated notes, as in drone music. Bearing elements associated with new-age music, instruments such as the piano, strings and flute may be emulated through a synthesizer.

The genre originated in the 1960s and 1970s, when new musical instruments were being introduced to a wider market, such as the synthesizer. It was presaged by Erik Satie's furniture music and styles such as musique concrète, minimal music, Jamaican dub music and German electronic music, but was prominently named and popularized by British musician Brian Eno in 1978 with his album Ambient 1: Music for Airports; Eno opined that ambient music "must be as ignorable as it is interesting", however, in early years, there were artists that were pioneers in this genre, like Tangerine Dream, Klaus Schulze, Wendy Carlos, Kraftwerk, etc. It saw a revival towards the late 1980s with the prominence of house and techno music, growing a cult following by the 1990s.

Electronica is both a broad group of electronic-based music styles intended for listening rather than strictly for dancing and a music scene that came to prominence in the early 1990s in the United Kingdom. In the United States, the term is mostly used to refer to electronic music generally.

Electronic dance music (EDM), also referred to as dance music or club music, is a broad range of percussive electronic music genres originally made for nightclubs, raves, and festivals. It is generally produced for playback by DJs who create seamless selections of tracks, called a DJ mix, by segueing from one recording to another. EDM producers also perform their music live in a concert or festival setting in what is sometimes called a live PA. Since its inception EDM has expanded to include a wide range of subgenres.

During the late 1980s to early 1990s, following the emergence of electronic music instruments, rave culture, pirate radio, party crews, underground festivals, and an upsurge of interest in club culture, EDM achieved mainstream popularity in Europe and Japan. However, rave culture was not as broadly popular in the United States; it was not typically seen outside of the regional scenes in New York City, Florida, the Midwest, and California. Although the pioneer genres of electro, Chicago house and Detroit techno were influential both in Europe and the United States, mainstream media outlets and the record industry in the United States remained openly hostile to it until the 1990s and beyond. There was also a perceived association between EDM and drug culture, which led governments at state and city levels to enact laws and policies intended to halt the spread of rave culture.