D defs.my
Entry 1 sense Webster, 1913

Za

· IPA /zɑː/
01 n. An old solfeggio name for B flat; the seventh harmonic, as heard in the or aeolian string; -- so called by Tartini. It was long considered …
  1. 1.
    An old solfeggio name for B flat; the seventh harmonic, as heard in the or aeolian string; -- so called by Tartini. It was long considered a false, but is the true note of the chord of the flat seventh.(Min.)