F Sharp Diminished 7th (also written Gbdim7)
F#dim7 is made of 4 notes: F#, A, C and Eb. Here it is in root position, with F# at the bottom.
Inside Notley Piano: all the inversions of F#dim7, fingering for both hands, a play button, and practice that helps you remember it.
| Note | Degree | Interval from F# |
|---|---|---|
| F# | 1 | root |
| A | b3 | minor 3rd |
| C | b5 | diminished 5th |
| Eb | 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.