an audible tone
91Selcall — Listen filename=CCIR 04221.ogg title=SelCall description=Example of a CCIR format call. format=Ogg: For the similarly named system used in aviation, see SELCAL. Selcall (selective calling) is a type of squelch protocol used in radio… …
92Motorola Type II — refers to the second generation Motorola Trunked radio systems that replaced fleets and subfleets with the concept of talkgroups and individual radio IDs. There are no dependencies on fleetmaps, therefore there are no limitations on how many… …
93Navajo phonology — is the study of how speech sounds pattern and interact with each other in that language. The phonology of Navajo is intimately connected to its morphology. For example, the entire range of contrastive consonants is found only at the beginning of… …
94Indo-Aryan languages — or Indic languages Major subgroup of the Indo Iranian branch of the Indo European language family. Indo Aryan languages are spoken by more than 800 million people, principally in India, Nepal, Pakistan, Bangladesh, and Sri Lanka. The Old Indo… …
95African music — Introduction the musical sounds and practices of all indigenous peoples of Africa, including the Berber in the Sahara and the San (Bushmen) and Khoikhoin (Hottentot) in Southern Africa. The music of European settler communities and that of… …
96Heterodyne — This article is about waveform manipulation. For the use of the term in poetry, see Heterodyne (poetry). For the webcomic characters, see Girl Genius. Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor… …
97Serialism — In music, serialism is a technique for composition that uses sets to describe musical elements, and allows the manipulation of those sets.Fact|date=May 2008 Serialism is often, though not universally, held to begin with twelve tone technique,… …
98Fire apparatus — A fire apparatus, fire engine, fire truck, or fire appliance is a vehicle designed to assist in fighting fires, by transporting firefighters to the scene, and providing them with access, water or other equipment. In some areas, the terms fire… …
99Western concert flute — Flute Other names Transverse flute, Boehm flute, C flute Classification Woodwind Wind Aerophone Playing ran …
100Atonality — in its broadest sense describes music that lacks a tonal center, or key. Atonality in this sense usually describes compositions written from about 1907 to the present day where a hierarchy of pitches focusing on a single, central tone is not used …
