Kabushiki Kaisha Kawai Gakki Seisakusho

Shu Eitaki

Tsutomu Saito

Tadayuki Ishida

Tetsuya Okano

Masafumi Minowa

An upright piano which is capable of providing a soft pedal effect in a first playing mode for performing acoustic playing, and an excellent performance in a second playing mode, without being affected by step-on of a soft pedal, while properly detecting the rotational position of each hammer, is disclosed. The upright piano includes sensors for detecting the rotational position of a hammer in the second playing mode, a hammer rest rail with which the hammer is in contact in a key-off state of a key, a soft pedal, a pedal rod for pushing up the hammer rest rail as the soft pedal is stepped on, a stopper movable between a permitting position and a blocking position, and a stopper drive mechanism for driving the stopper to the permitting position in the first playing mode and to the blocking position in the second playing mode.

Upright piano

Provide an automatic musical performance device, which is capable of giving a concert magic function in an acoustic instrument with a feeling of normally playing the acoustic instrument. A time period Tv between two points, and a tempo Tmp found based on a time intervals between two-point detection and later two-point detection, are found based on detection signals at the two points and later detection signals at the two points; and a delay time fD(Tv), which is from reception of each operating signal by a solenoid activating circuitto commencement of a musical performance of an acoustic piano by the circuit, and a velocity value fv(Tv, Tmp) are found based on functions. A time period Ta, which starts at the time of later detection Sin two-point detection as a reference and ends when a leveris inverted, is found as fa(Tv) based on a function. Each operating signal is transmitted to the solenoid activating circuitunder such timing control that a transmission timing Ton comes at a time of lapse of 'fa(Tv)&#x2212;fD(Tv)' sec after the later detection; and the velocity value is set at fv(Tv, Tmp).

Automatic musical performance device

A musical instrument having a signal output function,for outputting a given signal in response to a user command, and a mode managing function,for managing process modes of an electronic keyboard and compulsorily finishing an arbitrary process mode of the electronic keyboard when the signal is outputted by the signal output function,, and for changing to a tone color selection mode after the compulsory finish for setting a tone color of the electronic keyboard to a given tone color. Even during each of the process modes, the tone color of the electronic musical instrument can be compulsorily set to a given one.

Tone color setting device of electronic musical instrument

An electronic musical instrument has play modes and a help function in which a help picture is displayed in accordance with each of the play modes. When the help function is started by operating a help switch in the instrument being operating in a normal play mode, a picture for selecting one of the play modes is displayed on a display. When the help function is started in a play mode but the normal play mode, a help picture corresponding to the play mode is displayed at once. A sequence of operations for obtaining a help picture can be stored in a storing medium.

Electronic musical instrument with help function

In an electronic musical instrument, a controllable auto-player function controls to read out note data for an auto-play at the timings responsive to external instructions by an operation means, producing tones based on the readout note data. A display means displays in advance the tone generation timings of the respective tones to be generated on the basis of the note data with notation using a row of graphic patterns and their spacings. The graphic pattern changes to another pattern to indicate the note that has been instructed for tone generation.

Electronic musical instrument with graphic representation of note timings

A musical performance assisting system includes a key designating section for designating a key of music, a chord designating section for designating a chord in the music, a chord file storing pointers in a manner so as to correspond to keys of music, and a chord tone file storing the pointers in a manner so as to correspond to chord groups, each of the chord groups including chord tone data of chords belonging thereto. The system further includes a chord tone selecting section for selecting one of the pointers from the chord file based on the key designated by the key designating section and further selecting, from the chord tone file, chord tone data of one of the chords which belongs to one of the chord groups designated by the selected pointer and which is designated by the chord designating section. The system further includes a musical tone generating section for producing a musical tone corresponding to the chord tone data selected by the chord tone selecting section.

Growing community of inventors

Hamamatsu, Japan

Shu Eitaki