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Osmond Kendall
The Composer-Tron was developed by Osmond Kendal for the Canadian Marconi Company in 1953. It was the first analogue synthesis and composition instrument of its kind. It utilized a unique and innovative control system that had a cathode ray tube input device that could read shapes or patterns that was hand drawn on to its surface with a grease pencil. The drawn shape could define the timbre of the note, or the envelope shape of the sound. A sequence of the rhythmical markings could be defined using the writings similar to a cue sheet type strip of film. This was the future innovation for composers. With Kendal's grease pencil, the composer could draw the grooves, run it through the Composer-Tron and can ensure that all written music was listened to first, before symphony orchestra's played the music. Before the Composer-Tron composers would have to wait years just to listen if their work was complete. Sometimes their best work was never heard by the composer himself. This inventi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marconi Company
The Marconi Company was a British telecommunications and engineering company that did business under that name from 1963 to 1987. Its roots were in the Wireless Telegraph & Signal Company founded by Italian inventor Guglielmo Marconi in 1897, which underwent several changes in name after mergers and acquisitions. The company was a pioneer of wireless long distance communication and mass media broadcasting, eventually becoming one of the UK's most successful manufacturing companies. In 1999, its defence equipment manufacturing division, Marconi Electronic Systems, merged with British Aerospace (BAe) to form BAE Systems. In 2006, financial difficulties led to the collapse of the remaining company, with the bulk of the business acquired by the Swedish telecommunications company, Ericsson. History Naming history *1897–1900: The Wireless Telegraph & Signal Company *1900–1963: Marconi's Wireless Telegraph Company *1963–1987: Marconi Company Ltd *1987–1998: GEC-Marconi Ltd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Synthesis
A synthesizer (also spelled synthesiser) is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis and frequency modulation synthesis. These sounds may be altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically played with keyboards or controlled by sequencers, software or other instruments, and may be synchronized to other equipment via MIDI. Synthesizer-like instruments emerged in the United States in the mid-20th century with instruments such as the RCA Mark II, which was controlled with punch cards and used hundreds of vacuum tubes. The Moog synthesizer, developed by Robert Moog and first sold in 1964 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musical Form
In music, ''form'' refers to the structure of a musical composition or musical improvisation, performance. In his book, ''Worlds of Music'', Jeff Todd Titon suggests that a number of organizational elements may determine the formal structure of a piece of music, such as "the arrangement of musical units of rhythm, melody, and/or harmony that show repetition (music), repetition or variation (music), variation, the arrangement of the instruments (as in the order of solo (music), solos in a jazz or bluegrass performance), or the way a symphonic piece is orchestration, orchestrated", among other factors. It is, "the ways in which a composition is shaped to create a meaningful musical experience for the listener."Kostka, Stefan and Payne, Dorothy (1995). ''Tonal Harmony'', p.152. McGraw-Hill. . These organizational elements may be broken into smaller units called phrases, which express a musical idea but lack sufficient weight to stand alone. Musical form unfolds over time through th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode
A cathode is the electrode from which a conventional current leaves a polarized electrical device. This definition can be recalled by using the mnemonic ''CCD'' for ''Cathode Current Departs''. A conventional current describes the direction in which positive charges move. Electrons have a negative electrical charge, so the movement of electrons is opposite to that of the conventional current flow. Consequently, the mnemonic ''cathode current departs'' also means that electrons flow ''into'' the device's cathode from the external circuit. For example, the end of a household battery marked with a + (plus) is the cathode. The electrode through which conventional current flows the other way, into the device, is termed an anode. Charge flow Conventional current flows from cathode to anode outside of the cell or device (with electrons moving in the opposite direction), regardless of the cell or device type and operating mode. Cathode polarity with respect to the anode can be positive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timbre
In music, timbre ( ), also known as tone color or tone quality (from psychoacoustics), is the perceived sound quality of a musical note, sound or musical tone, tone. Timbre distinguishes different types of sound production, such as choir voices and musical instruments. It also enables listeners to distinguish different instruments in the same category (e.g., an oboe and a clarinet, both Woodwind instrument, woodwind instruments). In simple terms, timbre is what makes a particular musical instrument or human voice have a different sound from another, even when they play or sing the same note. For instance, it is the difference in sound between a guitar and a piano playing the same note at the same volume. Both instruments can sound equally tuned in relation to each other as they play the same note, and while playing at the same amplitude level each instrument will still sound distinctively with its own unique tone color. Experienced musicians are able to distinguish between diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composers
A composer is a person who writes music. The term is especially used to indicate composers of Classical music, Western classical music, or those who are composers by occupation. Many composers are, or were, also skilled performers of music. Etymology and Definition The term is descended from Latin, wikt:compono, ''compōnō''; literally "one who puts together". The earliest use of the term in a musical context given by the ''Oxford English Dictionary'' is from Thomas Morley's 1597 ''A Plain and Easy Introduction to Practical Music'', where he says "Some wil be good descanters [...] and yet wil be but bad composers". 'Composer' is a loose term that generally refers to any person who writes music. More specifically, it is often used to denote people who are composers by occupation, or those who in the tradition of Western classical music. Writers of exclusively or primarily songs may be called composers, but since the 20th century the terms 'songwriter' or 'singer-songwriter' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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