US Patent 7247788 Integrated computer and music keyboard module

An integrated computer and music keyboard module includes a key assembled base, on a first side of which a plurality of music keys are parallelly arranged. The key assembled base is provided on at least one lateral end with a connecting member for turnably connecting at least one extended module thereto. The extended module includes an extended key assembled base, on a first side of which a plurality of music keys are arranged, and on a second side of which a plurality of computer keys are arranged. When the extended module is turned about the connecting member to an extended position, a music keyboard is shown; and when the extended module is turned to a folded position, the computer keys are exposed to serve as a computer keyboard.