F# dim7/E
The F# dim7 chord consists of the F# (Perfect unison), A (Minor third), C (Diminished fifth) and D# (Major sixth) notes, with E as the bass note.

How to play the F# dim7/E chord
- Play E as the lowest bass note in the left hand
- Find F# (Root) on the piano keyboard
- Add A (Minor third) — 3 semitones above F#
- Add C (Diminished fifth) — 6 semitones above F#
- Add D# (Major sixth) — 9 semitones above F#
- Press all 5 notes simultaneously to sound the F# dim7/E chord