Musical keyboard
From Wikipedia, the free encyclopedia
A musical keyboard is the set of adjacent depressible levers or keys on a musical instrument, particularly 
the piano. Keyboards typically contain keys for playing the twelve notes of the Western musical scale, with a combination of larger, longer keys and smaller, shorter keys that repeats at the interval of an octave. Depressing a key on the keyboard causes the instrument to produce sounds, either by mechanically striking a string or tine (piano, electric piano, clavichord); plucking a string (harpsichord); causing air to flow through a pipe (organ); or strike a bell (carillon). On electric and electronic keyboards, depressing a key connects a circuit (Hammond organ, digital piano, synthesizer). Since the most commonly encountered keyboard instrument is the piano, the keyboard layout is often referred to as the “piano keyboard”.
This license plate sign makes a great gift for any musical person.
Tags: authenic reproduction license plate signs, collectible license plates
May 24th, 2011 at 2:30 pm
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