TWELVE-TONE SYSTEMtwelve-tone system · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:TWELVE-TONE SYSTEMTier 1Ordinal242Pythagorean62Reverse190Reverse Reduction82Standard1468Final Large2678Ordinal163Reduced55Atbash338Isopsephy2712Ordinal228Abjad1546