Music display device and method

A method for performing at least one procedure with a display device including a first planar surface and a second planar surface divided into multiple adjacent sectors, each sector bearing indicia of a different musical note or key in a musical scale, the second planar surface smaller in diameter than the first planar surface attached concentrically and rotatable with respect to the first planar surface, the second planar surface including at least one display window to reveal a portion of the first planar surface bearing at least one of a harmonica note location indicia and harmonica position indicia when a sector of said first planar surface and a sector of said second planar surface are substantially aligned, the method comprising:

• selecting said at least one procedure from a group of procedures including one of a first procedure including substantially aligning said at least one display window to display a chosen harmonica position indicia and determining a harmonica key from indicia of said sector of said first planar surface that is substantially aligned with said sector of said second planar surface bearing indicia of a desired song key, a second procedure including substantially aligning said at least one display window to display a chosen harmonica position indicia and determining a song key from indicia of said sector of said second planar surface that is substantially aligned with said sector of said first planar surface bearing indicia of a desired harmonica key, a third procedure including substantially aligning said sector of said first planar surface representing a chosen harmonica key in relation to said sector of said second planar surface representing a chosen song key and determining a harmonica position indicia revealed in said at least one display window, a fourth procedure including substantially aligning said sector of said first planar surface representing a chosen harmonica key in relation to said sector of said second planar surface representing a desired song note and determining all note locations of said desired song note on a chosen harmonica by indicia revealed in said at least one display window, a fifth procedure including substantially aligning said at least one display window to display a chosen note location and determining what note will be obtained at said note location from a specific harmonica key of a chosen harmonica by noting a song note represented by indicia of whichever sector of said second planar surface is substantially aligned with said sector of said first planar surface bearing indicia of said specific harmonica key, and a sixth procedure including substantially aligning said at least one display window to display a chosen harmonica position indicia and determining at least one note location corresponding to said harmonica position indicia;
• and,
• performing said at least one selected procedure with said display device.

A method for performing, at least one procedure using a display device including a first planar surface and a second planar surface of substantially similar size divided into a plurality of adjacent sectors, said second planar surface attached concentrically and rotatable with respect to said first planar surface, said second planar surface including a first display window to reveal a first portion of said first planar surface harmonica position indicia and one or more display windows to reveal one or more portions of the said planar surface bearing harmonica note location indicia corresponding to use of a harmonica, said first display window to reveal said harmonica position indicia and said one or more display windows to reveal said harmonica location indicia upon a substantial alignment of a sector of said first planar surface with a sector of said second planar surface, the method comprising:

• selecting said at least one procedure from a group of procedures including one of a first procedure including substantially aligning said first display window to display a chosen harmonica position indicia and determining at least one note location corresponding to said harmonica position indicia displayed in said one or more chosen windows, and a second procedure including substantially aligning said first display window to display a chosen harmonica position indicia, and determining which of said at least one window reveals a chosen note location indicia;
• and,
• performing said at least one selected procedure with said display device.