Musical acoustics

Musical acoustics or music acoustics is the branch of acoustics concerned with researching and describing the physics of music – how sounds are employed to make music. Examples of areas of study are the function of musical instruments, the human voice (the physics of speech and singing), computer analysis of melody, and in the clinical use of music in music therapy.

Methods and fields of study

Physical aspects

Whenever two different pitches are played at the same time, their sound waves interact with each other – the highs and lows in the air pressure reinforce each other to produce a different sound wave. As a result, any given sound wave which is not a sine wave can be modeled by many different sine waves of the appropriate frequencies and amplitudes (a frequency spectrum). In humans the hearing apparatus (composed of the ears and brain) can usually isolate these tones and hear them distinctly. When two or more tones are played at once, a variation of air pressure at the ear "contains" the pitches of each, and the ear and/or brain isolate and decode them into distinct tones.

Chill Out

Chill Out is the third studio album by The KLF, and the first album under the name, released in February 1990. An ambient house concept album, it portrays a mythical night-time journey up the US Gulf Coast from Texas into Louisiana. The album is a continuous composition, in which sampled music (including Elvis Presley, Fleetwood Mac, Acker Bilk and Tuvan throat singers), vocal samples and sound effects are overlaid with original music.

Context

Composition and recording

Chill Out is a single continuous musical piece having many distinctive sections, each of which either segues into or introduces the next. The album as a whole is a progression, with percussion gradually introduced during the second half. The KLF have stated in interviews that the album was recorded in a 44-minute "live" take in their studio, Trancentral, located in the basement of The KLF member Jimmy Cauty's squat in Stockwell, South London. This was a DAT to DAT "live" edit — essentially Chill Out is a "best of" of many hours of collaborative ambient DJ jam sessions that also involved Alex Paterson of The Orb. These took place at both Trancentral and the monthly 'Land of Oz' at London's Heaven nightclub. Said Cauty, "There's no edits on it. Quite a few times we'd get near the end and make a mistake and so we'd have to go all the way back to the beginning and set it all up again". According to Cauty's co-founder of The KLF, Bill Drummond, the album took two days to put together.Record Collector compared The KLF's production method to that of established electronic musicians: "While electronic dinosaurs like Jean Michel Jarre and Klaus Schulze were walling themselves in with banks and banks of synthesizers, computers and electronic gadgetry the KLF were doing the opposite—making a crafted work like Chill Out with the bare necessities of musical survival."

Acoustics

Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries.

Hearing is one of the most crucial means of survival in the animal world, and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or marking territories. Art, craft, science and technology have provoked one another to advance the whole, as in many other fields of knowledge. Robert Bruce Lindsay's 'Wheel of Acoustics' is a well accepted overview of the various fields in acoustics.

Musical

Musical may refer to:

See also