Patent ID: 8841532

Claim:
A musical instrument having a keyboard comprising a plurality of keys, the keys comprising at least two octaves with each octave including keys for the notes A, A♯, B, C, C♯, D, D♯, E, F, F♯, G, and G♯ in order of ascending pitch, wherein each octave comprises: proximal playing keys for the notes C♯, D♯, F♯, G♯, A♯ in order of ascending pitch, wherein each proximal playing key comprises a key top having a proximal side, a distal side, a right lateral side, and a left lateral side, wherein the right lateral side of each proximal playing key is parallel to the left lateral side of the proximal playing key, and wherein a longitudinal axis extends between the left lateral side and the right lateral side of each proximal playing key equidistantly between the left lateral side and the right lateral side; and distal playing keys for the notes A, B, C, D, E, F, and G in order of ascending pitch, wherein each distal playing key comprises a key top having a proximal side, a distal side, a right lateral side, and a left lateral side, the distal side of each distal playing key extending longitudinally further than the distal side of each proximal playing key, wherein the left lateral sides of the distal playing keys for the notes A, B, D, E, and G each comprise a longitudinally extending proximal portion, a laterally extending medial portion, and a longitudinally extending distal portion, wherein the right lateral sides of the distal playing keys for the notes A, C, D, F, and G each comprise a longitudinally extending proximal portion, a laterally extending medial portion, and a longitudinally extending distal portion, and wherein the medial portion of the right lateral side of the D key is the same length as the medial portion of the left lateral side of the E key, such that the longitudinal axis of the D♯ key extends between the longitudinally extending distal portion of the right lateral side of the D key and the longitudinally extending distal portion of the left lateral side of the E key.