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 ]   new music   plural A’s or As in Western new music, the sixth note in the size (= number of notes) that starts around the Take note C, or maybe a set of notes based on this NoticeWhen the ancient Greeks adopted the alphabet, they had no use for a letter symbol