Keyboard instrument with key on phrase tone generator

Keyboard instruments having hammer stopper outwardly extending f

Keyboard musical instrument allowing player to perform ensemble

Keyboard musical instrument and other-type musical...

Keyboard musical instrument and recorder/playback controller inc

Keyboard musical instrument equipped with electromagnetic key to

Keyboard musical instrument equipped with hammer shank stopper w

Keyboard musical instrument equipped with hammer stopper impleme

Keyboard musical instrument equipped with partially...

Keyboard musical instrument estimating hammer impact and timing

Keyboard musical instrument faithfully reproducing original...

Keyboard musical instrument for exactly producing tones and...

Keyboard musical instrument hammer movement detection apparatus

Keyboard musical instrument having hammer stopper exactly positi

Keyboard musical instrument having key touch controller

Keyboard musical instrument having key touch controller for givi

Keyboard musical instrument having key-touch generator changing

Keyboard musical instrument having keys equipped with...

Keyboard musical instrument selectively introducing time delay i

Keyboard musical instrument structure