Helmholtz–Ellis notation

HEWM Notation (Helmholtz-Ellis-Wolf-Monzo) - Tonalsoft enyclopedia of microtonal music theory

von Schweinitz - Extended Helmholtz-Ellis JI Pitch Notation

Plainsound Harmonic Space Calculator

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  Double flat lowered by three syntonic commas
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  Double flat lowered by two syntonic commas
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  Double flat lowered by one syntonic comma
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  Double flat
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  Double flat raised by one syntonic comma
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  Double flat raised by two syntonic commas
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  Double flat raised by three syntonic commas
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  Flat lowered by three syntonic commas
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  Flat lowered by two syntonic commas
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  Flat lowered by one syntonic comma
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  Flat
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  Flat raised by one syntonic comma
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  Flat raised by two syntonic commas
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  Flat raised by three syntonic commas
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  Natural lowered by three syntonic commas
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  Natural lowered by two syntonic commas
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  Natural lowered by one syntonic comma
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  Natural
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  Natural raised by one syntonic comma
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  Natural raised by two syntonic commas
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  Natural raised by three syntonic commas
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  Sharp lowered by three syntonic commas
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  Sharp lowered by two syntonic commas
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  Sharp lowered by one syntonic comma
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  Sharp
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  Sharp raised by one syntonic comma
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  Sharp raised by two syntonic commas
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  Sharp raised by three syntonic commas
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  Double sharp lowered by three syntonic commas
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  Double sharp lowered by two syntonic commas
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  Double sharp lowered by one syntonic comma
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  Double sharp
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  Double sharp raised by one syntonic comma
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  Double sharp raised by two syntonic commas
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  Double sharp raised by three syntonic commas
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  Lower by two septimal commas
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  Lower by one septimal comma
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  Raise by one septimal comma
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  Raise by two septimal commas
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  Lower by one undecimal quartertone
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  Raise by one undecimal quartertone
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  Lower by one tridecimal quartertone
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  Raise by one tridecimal quartertone
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  Combining lower by one 17-limit schisma
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  Combining raise by one 17-limit schisma
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  Combining lower by one 19-limit schisma
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  Combining raise by one 19-limit schisma
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  Combining lower by one 23-limit comma
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  Combining raise by one 23-limit comma
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  Combining lower by one 29-limit comma
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  Combining raise by one 29-limit comma
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  Combining lower by one 31-limit schisma
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  Combining raise by one 31-limit schisma

See also

Other notation systems: http://lumma.org/music/theory/notation/