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 tunes, the sixth Be aware in the dimensions (= number of notes) that begins over the Observe C, or even a list of notes determined by this Be aware When t