F7 chords with alternative bass notes
F7 chords for piano with alternative bass notes presented by keyboard diagrams.
Explanation: The slash in the chord name indicates that the second letter is added as a new bass note. F7/D should therefore be read as F seventh chord with a D note in the bass and F7/Bb as F seventh chord with a B flat note in the bass.
Theory: F7/D could be seen as an inversion of F13 with the ninth and the eleventh omitted. F7/Bb could be seen as an inversion of F11 with the ninth omitted.
F7/D
Notes: D - F - A - C - Eb
F7/Bb
Notes: Bb - F - A - C - Eb