heptachord的翻译，读音
英/'heptәkɒ:d/
释义：
n. 七弦琴, 七声音阶
n. A system of seven sounds.
n. A lyre with seven chords.
n. A composition sung to the sound of seven chords or
tones.
n. A system of seven sounds.
n. A lyre with seven chords.
n. A composition sung to the sound of seven chords or
tones.