ELECTRONIC MUSICAL INSTRUMENT WITH EXPRESSION CONTROL DEVICE FOR SIMULTANEOUSLY CONTROLLING DIFFERENT TONE SIGNALS BY DIFFERENT AMOUNTS

摘要

An electronic musical instrument includes two different music part playing sections such as an organ section and a rhythm section. The tone signal from the organ section is applied to an amplifier followed by a loudspeaker through a variable resistor for expression control, while the tone signal from the rhythm section is applied to the amplifier through a resistor having a resistance higher than the minimum resistance of the variable resistor and lower than the maximum resistance of the same. The input sides of both resistors are shunted by another resistor having a resistance comparable with the output impedance of the playing sections. When the variable resistor is operated, the rhythm section signal is subjected to volume control of a narrower range than the organ section signal.