Since a diminished seventh interval is enharmonically equivalent to a major sixth, the chord is enharmonically equivalent to (1, ♭3, ♭5, ♮6). Because of this, it can also be viewed as four notes all stacked in intervals of a minor third and can be represented by the integer notation. You can download the audio file.Īs such, a diminished seventh chord comprises a diminished triad plus a diminished seventh. (This also brings up an interesting observation: the only difference between a Minor 7th chord and a Half-Diminished 7th chord is that the latter has a flatted fifth.Audio playback is not supported in your browser. This rather long way of writing the chord name means, "Start with a Bbmin7 chord, and flat the fifth." When hand writing chord symbols, most people prefer the "slashed circle" method, but most printed music and lead sheets will use the longer, "min7-5" description. You may not have this "slashed circle" on your keyboard, so a common way to write the chord is also "Bbmin7-5". Please note that the symbol for the Half-Diminished Chord is a circle with a line through it (i.e., Bb Half-Diminished 7th is Bb ø7). We will now add to our chart the Diminished/Minor construction of the Half-Diminished 7th Chord.
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