ELECTRONIC MUSICAL INSTRUMENT WITH VARIABLE IMPEDANCE PLAYBOARD PROVIDING PORTAMENTO

An electronic musical instrument is disclosed in which a musical scale keyboard and a portamento playboard are arranged parallel and close to each other. Associated with the portamento playboard, there is provided a continuously variable frequency oscillator covering several octaves. The portamento...

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Bibliographic Details
Main Author OGI M,JA
Format Patent
LanguageEnglish
Published 04.12.1973
Subjects
ACOUSTICS
ELECTROPHONIC MUSICAL INSTRUMENTS
MUSICAL INSTRUMENTS
PHYSICS
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Summary:An electronic musical instrument is disclosed in which a musical scale keyboard and a portamento playboard are arranged parallel and close to each other. Associated with the portamento playboard, there is provided a continuously variable frequency oscillator covering several octaves. The portamento playboard includes a manually controllable variable impedance element which is normally open circuited to render the oscillator normally nonoperative. The variable impedance element is manually actuated so that the circuit is closed providing an impedance to control the frequency of the oscillator. The impedance element is so arranged that the position thereof actuated produces the same named note as the nearest key in the musical scale keyboard.
Bibliography:Application Number: USD3776087