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 ]   audio   plural A’s or As in Western audio, the sixth Be aware in the dimensions (= number of notes) that begins on the note C, or even a set of notes according to this note?a? may be the third-most-usually used letter in English soon after ?e? and ?t?, in add