Abstract: A detachable and foldable integrated organ includes a keyboard and a host mounted detachably thereon, the keyboard includes a flexible substrate on which flexible keys are provided, a flexible circuit board is provided between the substrate and the keys to generate an electrical signal corresponding to an action of the keys in response to the action, and an elastic arm for enhancing the resiliency of the keys are provided between the flexible circuit board and the key; the host is electrically connected to the flexible circuit board and adapted to process the electrical signal corresponding to the action of the key, and drive a speaker to sound. The detachable design between host and keyboard results in a more flexible and higher productivity; the keyboard is made of flexible material and thus is foldable, which can effectively reduce the volume of the organ and make it easy to carry.

Abstract: A portable electronic musical instrument is composed of two separable units, that is an upper unit including a controlling panel and a lower unit including a keyboard. For performance, the upper unit is vertically mounted on the lower unit and for portage the upper unit is horizontally mounted on the lower unit to form a portable box like structure. Both side boards of the lower unit are inclined toward the front surface of the keyboard so as not to interfere with performers hands in playing. Base portions of side boards of the upper unit are also inclined towards the keyboard so as to stabilize the upper unit in the performable state.