Jazz 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.
Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm, or otherwise expressive content. Definitions of music vary depending on culture, though it is an aspect of all human societies and a cultural universal. While scholars agree that music is defined by a few specific elements, there is no consensus on their precise definitions. The creation of music is commonly divided into musical composition, musical improvisation, and musical performance, though the topic itself extends into academic disciplines, criticism, philosophy, psychology, and therapeutic contexts. Music may be performed or improvised using a vast range of instruments, including the human voice.
In music, a cadenza is, generically, an improvised or written-out ornamental passage played or sung by a soloist or soloists, usually in a "free" rhythmic style, and often allowing virtuosic display. During this time the accompaniment will rest, or sustain a note or chord. Thus an improvised cadenza is indicated in written notation by a fermata in all parts. A cadenza will usually occur over either the final or penultimate note in a piece, the lead-in, or the final or penultimate note in an important subsection of a piece. It can also be found before a final coda or ritornello.
Musical composition can refer to an original piece or work of music, either vocal or instrumental, the structure of a musical piece or to the process of creating or writing a new piece of music. People who create new compositions are called composers. Composers of primarily songs are usually called songwriters; with songs, the person who writes lyrics for a song is the lyricist. In many cultures, including Western classical music, the act of composing typically includes the creation of music notation, such as a sheet music "score", which is then performed by the composer or by other musicians. In popular music and traditional music, songwriting may involve the creation of a basic outline of the song, called the lead sheet, which sets out the melody, lyrics and chord progression. In classical music, orchestration is typically done by the composer, but in musical theatre and in pop music, songwriters may hire an arranger to do the orchestration. In some cases, a pop or traditional songwriter may not use written notation at all and instead compose the song in their mind and then play, sing or record it from memory. In jazz and popular music, notable sound recordings by influential performers are given the weight that written or printed scores play in classical music.
Free improvisation or free music is improvised music without any general rules, instead following the intuition of its performers. The term can refer to both a technique—employed by any musician in any genre—and as a recognizable genre of experimental music in its own right.
Modal jazz is jazz that makes use of musical modes, often modulating among them to accompany the chords instead of relying on one tonal center used across the piece. Although precedents exist, modal jazz was crystallized as a theory by composer George Russell in his 1953 book Lydian Chromatic Concept of Tonal Organization.
Sheet music is a handwritten or printed form of musical notation that uses musical symbols to indicate the pitches, rhythms, or chords of a song or instrumental musical piece. Like its analogs – printed books or pamphlets in English, Arabic, or other languages – the medium of sheet music typically is paper. However, access to musical notation since the 1980s has included the presentation of musical notation on computer screens and the development of scorewriter computer programs that can notate a song or piece electronically, and, in some cases, "play back" the notated music using a synthesizer or virtual instruments.
Carnatic music, known as Karnāṭaka saṃgīta or Karnāṭaka saṅgītam in the South Indian languages, is a system of music commonly associated with South India, including the modern Indian states of Karnataka, Andhra Pradesh, Telangana, Kerala and Tamil Nadu. It is one of two main subgenres of Indian classical music that evolved from ancient Hindu texts and traditions, particularly the Samaveda. The other subgenre being Hindustani music, which emerged as a distinct form because of Persian or Islamic influences from Northern India. The main emphasis in Carnatic music is on vocal music; most compositions are written to be sung, and even when played on instruments, they are meant to be performed in gāyaki (singing) style.
A duet is a musical composition for two performers in which the performers have equal importance to the piece, often a composition involving two singers or two pianists. It differs from a harmony, as the performers take turns performing a solo section rather than performing simultaneously. A piece performed by two pianists performing together on the same piano is a "piano duet" or "piano four hands". A piece for two pianists performing together on separate pianos is a "piano duo".
A composer is a person who writes music. The term is especially used to indicate composers of Western classical music, or those who are composers by occupation. Many composers are, or were, also skilled performers of music.
Khyal or Khayal is a major form of Hindustani classical music in the Indian subcontinent. Its name comes from a Persian/Arabic word meaning "imagination". Khyal is associated with romantic poetry, and allows the performer greater freedom of expression than dhrupad. In khyal, ragas are extensively ornamented, and the style calls for more technical virtuosity than intellectual rigour.
Basso continuo parts, almost universal in the Baroque era (1600–1750), provided the harmonic structure of the music by supplying a bassline and a chord progression. The phrase is often shortened to continuo, and the instrumentalists playing the continuo part are called the continuo group.
Karlheinz Essl is an Austrian composer, performer, sound artist, improviser, and composition teacher.
Mugham or Mughamat is one of the many classical compositions from Azerbaijan, contrasting with tasnif and ashik.
Musical improvisation is the creative activity of immediate musical composition, which combines performance with communication of emotions and instrumental technique as well as spontaneous response to other musicians. Sometimes musical ideas in improvisation are spontaneous, but may be based on chord changes in classical music and many other kinds of music. One definition is a "performance given extempore without planning or preparation". Another definition is to "play or sing (music) extemporaneously, by inventing variations on a melody or creating new melodies, rhythms and harmonies". Encyclopædia Britannica defines it as "the extemporaneous composition or free performance of a musical passage, usually in a manner conforming to certain stylistic norms but unfettered by the prescriptive features of a specific musical text." Improvisation is often done within a pre-existing harmonic framework or chord progression. Improvisation is a major part of some types of 20th-century music, such as blues, rock music, jazz, and jazz fusion, in which instrumental performers improvise solos, melody lines and accompaniment parts.
Manodharma is a form of improvised South Indian classical Carnatic music. It is created on the spot during the performance, while remaining within the confines of musical grammar, as codified in the raga and/or the tala. Every Carnatic concert has one or many music pieces that showcases the singer's prowess and intellect in the form of Manodharma sangeetham. Often the centerpiece of a Carnatic concert will explore all the five types of manodharma. It serves as an important and integral aspect of Carnatic music.
Richard Barrett is a Welsh composer.
Live electronic music is a form of music that can include traditional electronic sound-generating devices, modified electric musical instruments, hacked sound generating technologies, and computers. Initially the practice developed in reaction to sound-based composition for fixed media such as musique concrète, electronic music and early computer music. Musical improvisation often plays a large role in the performance of this music. The timbres of various sounds may be transformed extensively using devices such as amplifiers, filters, ring modulators and other forms of circuitry. Real-time generation and manipulation of audio using live coding is now commonplace.
David Anthony Ahern was an Australian composer and music critic, who became a prominent artist in the avant-garde genre after his best-known work, Ned Kelly Music was released and performed at the Sydney Proms music series.
Anestis Logothetis was a Greek avant-garde composer, noted both for his musical works and his invention of his own graphic notation system.
