aA bA cA dA eA fA gA hA iA jA kA lA mA nA oA pA qA rA sA tA uA vA wA xA yA zA [ C/U ]   music   plural A’s or As in Western new music, the sixth Notice in the scale (= series of notes) that begins to the Observe C, or even a list of notes determined by this note A would be the