The D/F# chord is a D Major chord, with the F (the 3rd) as the bass note.
The chord is also referred to as D over F#, or D ‘slash’ F#, or simply, D with an F sharp in the bass.
Technically, the D Major chord with the F# in the bass is a first inversion D Major chord.
Some D/F# Chord Theory and Info
- The D/F# chord contains the notes F#, D and A.
- It is a D Major chord with an F sharp in the bass.
- The root note of D/F# is D, the bass note is F sharp.