I’ve been spending time daily playing the four inversions of dominant 7th chords (-no extensions yet) on the top four strings. All 12 of ’em, first C7, then F7, then Bb7 and so on through G7 and back to C7. This morning I thought “I should know which arpeggio and scale fingering fits each inversion.” That wasn’t so hard to figure out.
C7 root on B string: fingering 6
C7 root on G string: fingering 3 or 4
C7 root on E string: fingering 1 or 2 (-depending)
C7 root on D string: fingering 7
Is this correct? (Fingerings 4 and 5 have not been mentioned, so I feel I’m missing something. Fingering 5 seems to suit a C9 with the root on the A string, which is not part of the present routine.)