五ご度ど圏けん

noun

circle of fifths

Music theory term for the circular diagram showing relationships among the 12 tones of the chromatic scale, their key signatures, and associated major and minor keys.

• 五ご度ど圏けんを使つかうと、調ちょう号ごうの数かずがすぐにわかる。

  Using the circle of fifths, you can quickly tell the number of sharps or flats in a key signature.