Diminished 7th Chord
đ” A highly dissonant and symmetrical chord (root, b3, b5, bb7). Each note is a minor third apart, allowing it to resolve to multiple keys, making it great for modulation. Use it to create intense tension, drama, and mystery, often as a leading-tone chord to a tonic or other chord (e.g., G#dim7 to Am or C). Useful for creating suspense or changing keys quickly.
Also abbreviated as: dim7°7o7
With all 4 notes and C as bass, it is also: Adim7/CA°7/CCdim7C°7D#dim7/CD#°7/CEbdim7/CEb°7/CF#dim7/CF#°7/CGbdim7/CGb°7/C
Contains intervals: 1P3m5d7d
Popular songs which use this chord type: A Day in the Life (The Beatles), My Favorite Things (Rodgers & Hammerstein), Stairway to Heaven (Led Zeppelin - in the transition)
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