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• 2025年12月2日 (二) 09:35 Administrator 留言 贡献创建了页面5/4 （创建页面，内容为“{{interwiki | de = Naturterz | en = 5/4 | es = | ja = | ro = 5/4 (ro) }} {{Infobox Interval | Name = just major third, classic(al) major third, ptolemaic major third | Color name = y3, yo 3rd | Sound = jid_5_4_pluck_adu_dr220.mp3 }} {{Wikipedia|Major third}} In 5-limit just intonation, '''5/4''' is the frequency ratio between the 5th and 4th harmonics. It has been called the '''just major third''', '''classic(al) major third''', or '''ptolema…”）