noun
: an incomplete lowest octave in an organ or keyboard musical instrument having certain seldom used tones omitted and tuned according to those tones most frequently used — called also broken octave
noun
: an incomplete lowest octave in an organ or keyboard musical instrument having certain seldom used tones omitted and tuned according to those tones most frequently used — called also broken octave
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012