F Diminished 7th
Fdim7 is made of 4 notes: F, Ab, Cb (B) and Ebb (D). Here it is in root position, with F at the bottom.
Inside Notley Piano: all the inversions of Fdim7, fingering for both hands, a play button, and practice that helps you remember it.
| Note | Degree | Interval from F |
|---|---|---|
| F | 1 | root |
| Ab | b3 | minor 3rd |
| Cb (B) | b5 | diminished 5th |
| Ebb (D) | bb7 | diminished 7th |
A diminished 7th chord stacks three minor 3rds. It sounds dramatic and spooky, and every note is the same distance apart, so the same shape repeats every three frets.