noun
Pythagorean tuning; Pythagorean temperament
Technical term in music theory referring to the tuning system based on perfect fifths, attributed to Pythagoras.
ピタゴラス音律は、完全五度の積み重ねで音階を作る調律法です。
Pythagorean tuning is a tuning method that builds scales by stacking perfect fifths.
純正律 (just intonation) uses simple whole-number frequency ratios for pure intervals, while ピタゴラス音律 is based solely on perfect fifths, leading to different interval qualities.
平均律 (equal temperament) divides the octave into equal steps, making all keys equally usable, unlike ピタゴラス音律 which has some dissonant intervals in certain keys.
From ピタゴラス (Pythagoras) + 音律 (musical temperament). The term directly names the tuning system associated with the ancient Greek philosopher Pythagoras.