A fingerboard-type playing device for an electronic musical instrument comprises an elongated resistor, a plurality of conductor taps spaced apart from each other and contiguously aligned in a row parallel to and by the resistor, and a flexible contact disposed over the elongated resistor and the conductor taps with a small space normally apart therefrom. A depression of the flexible contact makes an electric connection between the flexible contact and the elongated resistor or between the flexi...

An electronic musical instrument including tone generators for generating tone signals each having predetermined tone pitches constituting a musical scale and tone keyers for respectively keying the tone signals, is further provided with a circuit arrangement for fluctuating the pitch of the tone at the start of the tone. The arrangement comprises a detector for detecting the start of the tone signal being played and a pulse generator producing a pulse signal upon receipt of the detected signal ...

A device comprises a variable delay circuit for delaying a musical tone signal; means for varying a delay time of the variable delay circuit; a frequency spectrum modifier to which an output signal from the delay circuit is applied; and a feedback loop for feeding an output of the frequency spectrum modifier back to the input side of the variable delay circuit; whereby a musical tone signal to which is applied a tone color varied with time is obtained from the output side of the variable delay c...

An automatic rhythm playing apparatus has a memory which stores note arrangements for a plurality of rhythms. Timing pulse trains representing the rhythm patterns of the note arrangements of specific percussion instrument sounds for a selected rhythm are read out of the memory by circulating address signals and a stationary address signal proper to the selected rhythm. Required percussion instrument sound signals are produced in response to the pulses, and a rhythm sound signal composed of the p...

In an electronic musical instrument, a tone generator consists of two sections. A first section comprises a single master oscillator and a plurality of frequency dividers having respective frequency dividing ratios for dividing the master oscillator frequency to obtain some of twelve notes in an octave. A second section comprises a frequency shifter for shifting a frequency from the first section and frequency dividers for dividing the shifted frequency to obtain the rest of notes in the octave.

A delayed vibrato signal generating arrangement in which an envelope signal which changes from a first potential level to a second potential level at the instant of key depression, and thereafter varies gradually from the second potential level to the first potential level is generated by an envelope signal generator, the peak portion of such envelope signal is clipped off by a clipper, and then a vibrato signal with a gradually increasing amplitude is generated by a vibrato signal generator dri...

An automatic musical performance device follows in tempo a manual performance and is controllable to change the tempo of automatic performance independently of the tempo of manual performance. The automatic musical performance device comprises means for generating reference tempo data, means for generating tempo return instruction and tempo control means for controlling the tempo of automatic performance so as to usually follow up the tempo of manual performance and for controlling the tempo of ...

An automatic trill-producing device for electronic musical instruments having keyboards is composed of a plurality of switching circuits (or tone generators), a first group and a second group of changeover switches, make-contacts of said first and second groups of changeover switches being connected to said switching circuits (or tone generators) respectively, the break-contacts and moving contact of said first group of changeover switches being connected in a "high note priority" arrangement, t...

A simple, versatile, and quickly operable tone color changing device comprising a combination of a variable means which may be a multiposition changeover switch or a plurality of variable resistors interlinked with an operable means such as a knee-lever, and a selecting means preferably consisting of a multiposition, double-circuit changeover switch connected with two different tone color signal sources.

On an electronic musical instrument, a loudspeaker is fitted to a space through a bellows. Therefore, it can be freely pulled out and push into the space. Further, the use of the bellows contribute to making the space smaller and an acoustic effect easily changeable.