systema ( συστεμα )

(Greek: "composition", "system", plural: systemata [ συστεματα ] )

Complex of tetrachords and whole tones, i.e.:

• the greater perfect system (or "greater complete system", συστεμα τελειον μειζον [systema teleion meizon])
• the lesser perfect system συστεμα τελειον ελαττον [systema teleion elatton])
• their union, the changeless system συστεμα αμεταβολον [systema ametabolon]) or perfect immutable system συστεμα τελειον αμεταβολον [systema teleion ametabolon]).

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