Tonality systems
The term “tonality system” is used in Dorico Pro to encompass three crucial elements that together make up the concept of tonality.
The three elements that make up tonality systems are:
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A number of equal divisions of the octave, or EDO. For example, standard Western scales with half-step (semitone) steps have 12-EDO.
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A set of accidentals. This allows you to notate how much a note is raised or lowered. This can be a traditional or a custom set of accidentals, either selected from the wide variety available or of your own design.
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A key signature. This can be a traditional Western key signature, or a custom key signature of your own design.