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 ]   tunes   plural A’s or As in Western tunes, the sixth Observe in the scale (= series of notes) that commences on the note C, or possibly a list of notes based upon this NoticeWhen the ancient Greeks adopted the alphabet, they had no use to get a letter symboli