half diminished and diminished

1 2 3 4 5 6 7 8

What is a half diminished chord?

  • A diminished triad (1, m3, b5) without a seventh.
  • A diminished triad (1, m3, b5) with a seventh (7).
  • A diminished triad (1, m3, b5) with a diminished seventh (b7).