english: Diminished seventh chord (Fully Diminished Seventh Chord) is constructed with a minor third, a diminished fifth, and a diminished seventh from the root.
non_english: Â 1903:Â 20 Jan (ru);Â Â Â Â 17 Freb (ru);Â Â 18 Mar (ru);Â Â Â Â 21 Apr (ru);Â Â Â Â