Abstract: A cable guard is shown to include a bridge body and substantially parallel legs extending perpendicularly outward therefrom. The top portion of the bridge body includes a recess extending inward therefrom, and each substantially parallel leg has a respective bore therethrough. The recess of the cable guard prevents unnecessary further drive of the U-shaped staple when the U-shaped staple is sufficiently captured by the cable guard and secured onto the support surface. The bores of the parallel legs of the cable guard provide a force fit when mated with the legs of a U-shaped staple, and the inner surfaces of the parallel legs of the cable guard provide a force fit when mated with a wire. Accordingly, a unitary system comprising the cable guard, U-shaped staple, and wire allows for easy installation. The bottom surface of the cable guard can generally conform to the support surface to which it is to be secured thereto. The cable guard may also accommodate barbed staples.

Abstract: A method of teaching music theory employs a plurality of game pieces. The game pieces correspond to notes on a music scale. The game pieces are arrangeable in a manner in which each game piece is adjacent to at least one of the other game pieces. The method comprises assigning a first orientation to correspond to a whole step and assigning a second orientation to correspond to a half step. The first orientation constitutes a first spatial relationship between adjacent game pieces. The second orientation constitutes a second spatial relationship between adjacent game pieces. The second spatial relationship differs from the first spatial relationship. The method further comprises arranging the game pieces in a manner so that each game piece is adjacent to at least one of the other game pieces in either the first orientation or the second orientation.