Japan has old alphabets, いろはにほへと　ちりぬるを わかよたれそ　　つねならむ うゐのおくやま　けふこえて あさきゆめみし　ゑひもせすん and, musical scale ( do, re, mi, fa, so, la, si) is also written with C,D,E,F,G,A,B in europe, and Japan assigned the begining of japanese alphabets 'イロハニホヘト（いろはにほへと）' to 'ABCDEFG', so, C=ハ, D=ニ, E=ホ, F=ヘ, G=ト, A=イ, B=ロ. Addition: いろはにほへと～ make sentences and meanings like bellow. 色は匂へど　散りぬるを 我が世誰そ　常ならむ 有為の奥山　今日越えて 浅き夢見じ　酔ひもせず