F#dim chord
F# diminished
<
1 / 1
>
3
5
7
10
The F#dim chord has the formula 1, b3, b5 with notes F#, A, C
The diminished chord is a variation of the minor chord with a flat 5th note. It is less common in popular music due to its high tension, but can sometimes be used as a bridge between two chords to emphasize the release of tension.