The Fm/Ab (F minor over Ab) chord is an F minor chord, with the Ab (the b3) as the bass note.
The chord is also referred to as Fm over Ab, or Fm ‘slash’ Ab, or simply, F minor with an Ab in the bass.
Technically, the F minor chord with the Ab in the bass is a second inversion F minor chord.
Some Fm/Ab Chord Theory and Info
- The Fm/Ab chord contains the notes Ab, F and C.
- It is a F minor chord with an Ab in the bass.
- The root note of Fm/Ab is F, the bass note is Ab.
- The Fm/Ab chord is very similar to the Ab6 chord, and they are often used interchangeably. The only difference between the two chords is that the Ab6 chord can also include the Eb note, which is the 5th of Ab. Including the Eb note in Fm/Ab would make it an Fm7/Ab, as the Eb is the b7 note.