Music voicing circuit deriving an input from a conventional musical instrument and providing voiced musical tones utilizing the fundamental tones from the conventional musical instrument

Claim 1

Electronic musical apparatus for forming musical notes voiced in a predetermined manner and adapted to be used with a typical stringed instrument having strings which are selectively shortened to alter the tone of the instrument, the tone formed by the instrument including a fundamental and harmonics and which comprises: a. first transducer means for forming a signal proportional to an individual string''s vibrations, said means being adapted to be operably coupled with one string on a typical musical instrument which fOrms notes having a fundamental and mix of harmonics of various phases and amplitudes; b. second transducer means for forming a signal proportional to a second individual string''s vibrations, said means being adapted to be operably coupled with a second string of such instrument; c. positioning means for positioning said first and second transducer means operably coupled with first and second individual strings, said means positioning said transducer means at selected distances from the individual strings and a closer distance from the strings when the strings are shortened to cause said transducer means to form a larger signal for notes made on respectively shortened strings; d. first filter means connected to said first transducer means; e. second filter means connected to said second transducer means; f. each of said filter means being individually tuned for attenuating the various harmonics, their respective signals relative to the fundamental, and each having a rolloff point approximately equal to or greater than the fundamental frequency of the respective open strings, and further having a rolloff which relatively attenuates the harmonics of the notes of shortened strings in comparison with the fundamental of notes of the shortened strings, said filter means forming respective output signals of the relatively filtered fundamentals of the open and shortened strings; and, g. voicing means including first and second voicing circuit means for voicing the fundamentals from said first and second filter means for selectively forming first and second voiced musical notes.