Abstract: A wireless power supply system to for musical instrument comprises: a power supply device which is configured to wirelessly transmit microwaves, and a first power receiving device which is attached to a first musical instrument. The first power receiving device is configured to: receive the wirelessly transmitted microwave, and generate a first electric power from the received microwave, wherein the first electric power is supplied to at least one of a first electronic device installed in the first musical instrument and a first battery installed in the first musical instrument.

Abstract: An acoustic processing device includes: a plurality of loudspeaker units that output sound; and a mechanism that is configured to be capable of changing a distance between the loudspeaker units.

Abstract: A loudspeaker device includes: an output control unit that causes a sound to be output from a loudspeaker in a case where a headphone device and the loudspeaker device are connected to each other. The sound is generated based on sound data transmitted from the headphone device that has received the sound data through wireless communication from a sound output device. The headphone device is configured to output a sound from a headphone.

Abstract: An acoustic processing device includes: a plurality of loudspeaker units that output sound; and a mechanism that is configured to be capable of changing a distance between the loudspeaker units.

Abstract: A hybrid wind musical instrument is a combination between an alto saxophone and an electronic system so that a player can perform a music tune selectively through acoustic tones and electronic tones; although various parts and accessories are assembled into the alto saxophone, a bell brace makes it possible to sustain a control unit of the electronic system without damage of alto saxophone and undesirable influence on acoustic characteristics of the tubular instrument body.

Abstract: A hybrid wind musical instrument is a combination of an alto saxophone and an electronic system, and a player has an option between acoustic tones and electronic tones to be produced during performance; the electronic system includes sensors monitoring selected component parts of the key mechanism so as to determine the electronic tones intended to be produced by the player, and plural combinations of pieces of magnet and Hall-effect elements serve as the sensors: However, the component parts of key mechanism are arranged in a narrow space over the surface of tubular instrument body; driven parts are attached to the selected component parts so as to bridge gap between the selected component parts and the Hall-effect elements remote from the selected component parts.

Abstract: A hybrid wind musical instrument is a combination of an alto saxophone and an electronic system, and a player has an option between acoustic tones and electronic tones to be produced during performance; the electronic system includes sensors monitoring selected component parts of the key mechanism so as to determine the electronic tones intended to be produced by the player, and plural combinations of pieces of magnet and Hall-effect elements serve as the sensors: However, the component parts of key mechanism are arranged in a narrow space over the surface of tubular instrument body; driven parts are attached to the selected component parts so as to bridge gap between the selected component parts and the Hall-effect elements remote from the selected component parts.

Abstract: A hybrid wind musical instrument is a combination between an alto saxophone and an electronic system so that a player can perform a music tune selectively through acoustic tones and electronic tones; although various parts and accessories are assembled into the alto saxophone, a bell brace makes it possible to sustain a control unit of the electronic system without damage of alto saxophone and undesirable influence on acoustic characteristics of the tubular instrument body.

Abstract: A hybrid saxophone is a combination of an acoustic saxophone and an electronic system, and the electronic system includes key sensors for monitoring the keys and a tonguing sensor for detecting the position of the tongue together with a breath sensor and a lip sensor, and the pieces of playing data are brought to an electronic tone generator for producing electric tones; the mouthpiece of the acoustic saxophone is replaced with another mouthpiece, which does not supply the breath to the reed, and a rotary type air-flow regulator is provided in the mouthpiece so that the player feels the blowing same as that in the acoustic saxophone.

Abstract: A hybrid saxophone is a combination of an acoustic saxophone and an electronic system, and the electronic system includes key sensors for monitoring the keys and a tonguing sensor for detecting the position of the tongue together with a breath sensor and a lip sensor, and the pieces of playing data are brought to an electronic tone generator for producing electric tones; the mouthpiece of the acoustic saxophone is replaced with another mouthpiece, which does not supply the breath to the reed, and a rotary type air-flow regulator is provided in the mouthpiece so that the player feels the blowing same as that in the acoustic saxophone.