Mechanical chord fretter for fretted instruments

Claim 1

A mechanical chord fretter for use with a string carrying fretted finger board of a musical instrument such as guitar, said fretter comprising: a housing detachably engagable with the board; a plurality of plunger assemblies in the housing, each assembly when actuated being pressed down upon a selected string at a selected fret to fret a note, a chord being fretted when the particular assemblies associated with the particular notes in the chord are pressed down simultaneously; a plurality of slidable cards in the housing, each card being associated with a separate chord, each card being individually slidable between a normal first position remote from the assemblies and a second position at which it engages the assemblies, each card when in the second position selecting for actuation the assemblies defining the notes in the chord associated with the said each card; a plurality of normally raised push buttons in the housing, each push button being associated with a different card and the card associated therewith, each push button, when depressed, causing its associated card to be slid from its first to its second position; and manuable operable lever means in the housing having a first position at which the assemblies selected for actuation are actuated and the appropriate chord fretted, said lever means having a second position at which the card then in its second position is returned to its first position.