An adaptive equipment for playing chords on a musical instrument is provided. The apparatus can have a shell having an interior cavity. The adaptive equipment has a root pin partially installed within a root housing channel of a root housing, the root housing is fixedly installed within an interior cavity of the shell and is positioned toward the left side of the shell. The adaptive equipment has a fifth pin partially installed within a fifth housing channel of a fifth housing, the fifth housing is fixedly installed within the interior cavity of the shell and is positioned toward the right side of the shell. The adaptive equipment has a third pin partially installed within a third housing channel of a third housing, the third housing is movably installed within the interior cavity of the shell and is positioned between the root housing and the fifth housing. The root pin, the third pin and the fifth pin correspond to a major triad on a piano keyboard when the third housing is positioned closer to the fifth housing. The root pin, the third pin and the fifth pin correspond to a minor triad on the piano keyboard when the third housing is positioned closer to the root housing.