An endpin is adapted to be installed on a string instrument and adapted to abut against a supporting surface. The endpin includes a stick body and a sound-enhancing dish. The stick body has a connecting end adapted for mounting to the string instrument, and a pointed abutting end adapted for abutting against the supporting surface. The sound-enhancing dish is sleeved on and mounted to the stick body, and has an opening facing the connecting end of the stick body.

An endpin is adapted to be installed on a string instrument and adapted to abut against a supporting surface. The endpin includes a stick body and a sound-enhancing dish. The stick body has a connecting end adapted for mounting to the string instrument, and a pointed abutting end adapted for abutting against the supporting surface. The sound-enhancing dish is sleeved on and mounted to the stick body, and has an opening facing the connecting end of the stick body.

A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.

A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.

Improved endpin stand apparatus for large stringed instruments are provided. The endpin stand apparatus comprises an endpin shaft and/or a hole for receiving an endpin shaft which supports a large stringed instrument, and components to elevate the endpin shaft from the floor on which the endpin stand apparatus rests. The endpin stand apparatus allows for adjustment of the height of the apparatus and thus of the stringed instrument, and may allow of adjustment of the angle of the instrument relative to the axis defined by the apparatus. The endpin stand apparatus allows a user, the musician, to stand while playing the instrument, and allows the user to move both forward and back and side-to-side through a range of motion. The adjustable endpin stand apparatus height and angle allow for a range of instrument locations and angles, and increased range of motion by the musician while playing the instrument.

Improved endpin stand apparatus for large stringed instruments are provided. The endpin stand apparatus comprises an endpin shaft and/or a hole for receiving an endpin shaft which supports a large stringed instrument, and components to elevate the endpin shaft from the floor on which the endpin stand apparatus rests. The endpin stand apparatus allows for adjustment of the height of the apparatus and thus of the stringed instrument, and may allow of adjustment of the angle of the instrument relative to the axis defined by the apparatus. The endpin stand apparatus allows a user, the musician, to stand while playing the instrument, and allows the user to move both forward and back and side-to-side through a range of motion. The adjustable endpin stand apparatus height and angle allow for a range of instrument locations and angles, and increased range of motion by the musician while playing the instrument.

An accessory for modifying sound output of a musical instrument. The body of the instrument has a soundboard. The accessory includes a sound sensor, an actuator, a fastener, and a controller. The sound sensor engages the body and senses vibration of the body representing the sound output of the musical instrument. The actuator engages the soundboard and deforms the soundboard of the musical instrument so as to modify the sound output of the musical instrument. The sound sensor is preferably arranged distally to the actuator. The fastener engages the accessory to the musical instrument, to locate the actuator against the soundboard of the musical instrument. The controller is connected to the actuator and the sound sensor for receiving and analysing the sound output sensed by the sound sensor, and controlling the actuator in dependence on the sound output sensed by the sound sensor.

An accessory for modifying sound output of a musical instrument. The body of the instrument has a soundboard. The accessory includes a sound sensor, an actuator, a fastener, and a controller. The sound sensor engages the body and senses vibration of the body representing the sound output of the musical instrument. The actuator engages the soundboard and deforms the soundboard of the musical instrument so as to modify the sound output of the musical instrument. The sound sensor is preferably arranged distally to the actuator. The fastener engages the accessory to the musical instrument, to locate the actuator against the soundboard of the musical instrument. The controller is connected to the actuator and the sound sensor for receiving and analysing the sound output sensed by the sound sensor, and controlling the actuator in dependence on the sound output sensed by the sound sensor.

A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.

A musical instrument sound amplifying device includes a hollow annular chamber formed inside the musical instrument sound amplifying device; a flaring slot including a lug on a bottom; and a bowl-like annular base including a dimple part on a bottom. The lug is secured to the dimple part. An annular sound hole is disposed between an opening of the bowl-like annular base and an edge of the flaring slot. An inner circumference of the bowl-like annular base is a 3D ring structure of concave surface.