Abstract: A string depressing device is useable to fret at least one string of a stringed musical instrument. The string depressing device includes a frame that, when adjacent to a fingerboard of the stringed musical instrument, extends both along and across the fingerboard and above the strings. A plurality of protruding compressible resilient members extend from the frame toward the fingerboard. When the frame is pressed against the fingerboard, each protruding member sufficiently depresses an underlying string to fret that string. In an operative position, some of the protruding members are positioned over corresponding strings at desired positions along the fingerboard. A capo can be placed around the neck of the stringed instrument and over the frame to press the frame towards the fingerboard. This presses at least some protruding members against corresponding strings, and effectively frets those strings against the fingerboard at the desired positions to form a musical chord.

Abstract: A string depressing device is useable to fret at least one string of a stringed musical instrument. The string depressing device includes a frame that, when adjacent to a fingerboard of the stringed musical instrument, extends both along and across the fingerboard and above the strings. A plurality of protruding compressible resilient members extend from the frame toward the fingerboard. When the frame is pressed against the fingerboard, each protruding member sufficiently depresses an underlying string to fret that string. In an operative position, some of the protruding members are positioned over corresponding strings at desired positions along the fingerboard. A capo can be placed around the neck of the stringed instrument and over the frame to press the frame towards the fingerboard. This presses at least some protruding members against corresponding strings, and effectively frets those strings against the fingerboard at the desired positions to form a musical chord.

Abstract: The present invention provides ergonomic keyboards and methods of using such keyboards. In particular, the present invention provides split keyboards for use on non-traditional surfaces such as body parts and provides keyboard components having one or more additional non-keyboard functionalities (e.g., point-and-click capabilities).