Voicing of F Minor 7

Drop 2 IV

Back to Fm7

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Left hand
F2
Right hand
Ab3Eb4F4C5
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Drop 2

The Drop 2 IV voicing of Fm7 stacks Ab, Eb, F and C from the bottom up: the minor 3rd, minor 7th, root and 5th of the chord.

It's one of the Drop 2 voicings: four-note chords in close position with the second note from the top dropped an octave, played over the root. The others for Fm7 are Drop 2 I, Drop 2 II and Drop 2 III.