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piano

(Encyclopedia)piano or pianoforte, musical instrument whose sound is produced by vibrating strings struck by felt hammers that are controlled from a keyboard. The piano's earliest predecessor was the dulcimer. The ...

Sullivan, Sir Arthur Seymour

(Encyclopedia)Sullivan, Sir Arthur Seymour, 1842–1900, English composer, famous for a series of brilliant comic operas written in collaboration with the librettist W. S. Gilbert. As a boy he sang in the choir of ...

analog-to-digital conversion

(Encyclopedia)analog-to-digital or A/D conversion, the process of changing continuously varying data, such as voltage, current, or shaft rotation, into discrete digital quantities that represent the magnitude of th...

Sumer Is Icumen In

(Encyclopedia)Sumer Is Icumen In so͝omˈər ĭs ēko͝omˈən ĭn [key] [M.E.,=summer has (literally: is) come in], an English rota or round composed c.1250. It is the earliest extant example of canon, of six part...

theory

(Encyclopedia)theory, in music, discipline involving the construction of cognitive systems to be used as a tool for comprehending musical compositions. The discipline is subdivided into what can be called speculati...

Gance, Abel

(Encyclopedia)Gance, Abel, 1889–1981, pioneering French filmmaker. He acted on the stage in the early 1900s and appeared on the silent screen. From 1911 he wrote and directed several films; his first important fi...

journalism

(Encyclopedia)journalism, the collection and periodic publication or transmission of news through media such as newspaper, periodical, television, and radio. By broadcasting events such as the Watergate hearin...

skeleton, in anatomy

(Encyclopedia)CE5 Human skeleton skeleton, in anatomy, the stiff supportive framework of the body. The two basic types of skeleton found among animals are the exoskeleton and the endoskeleton. The shell of the ...

locust, in zoology

(Encyclopedia)locust, in zoology, name for certain migratory members of the short-horned grasshopper family (Acrididae). Like other members of this family, locusts have antennae shorter than their bodies, song-prod...

rhea, in zoology

(Encyclopedia)rhea rēˈə [key], common name for a South American bird of the family Rheidae, which is related to the ostrich. Weighing from 44 to 55 lb (20–25 kg) and standing up to 60 in. (152 cm) tall, the rh...