If the same previous notes (B, D, E#, G#) are written enharmonically B, D, F, Ab, the sound would be the same. The key, scale, and name of the chord would be different. It would have been derived from an entirely different key than previously.Reminder. Remember. The alphabetical letter name of the ROOT of the full diminished 7th chord is the same as the note that makes up the vii degree of the harmonic minor scale.Easy figuring .. Count up 1 fret, or 1/2 step, from the vii degree and you will obtain the root of the chord. B is the vii degree of the harmonic mode of the C minor scale. The C harmonic minor scale uses the notes C, D, Eb, F, G, Ab, B, and C.The vii degree of the harmonic mode of the C minor scale is the note B. The notes of the B dim 7 chord are B, D, F, Ab.
If we take this one step further and make an inversion of the notes in the Bdim7 chord, we could have D, F, Ab, and B.
By writing the "B" enharmonically different we would have D, F, Ab, and Cb for the notes of the chord. The "D" would be the root and the name of the chord would be Ddim7. The root, "D", becomes the vii scale degree of? Think up a 1/2 step (1 fret) and we get "Eb". We would have the Eb minor scale in the harmonic minor mode.The key signature would have 6 flats. The only flat left out would be on the F space". For the viewers who do not read music or know key signatures, check the lesson on KEY SIGNATURES #2150
The notes of the Eb harmonic minor scale would be Eb, F, Gb, Ab, Bb, Cb, D, Eb. The notes of the chord would be spelled D, F, Ab, Cb.
The Eb Harmonic Minor Scale is shown in the third diagram. The scale extends to the highest note in position. Descends to the lowest possible note in position. Then returns to the beginning note.The fourth diagram is the arpeggio using the D diminished triad with the added tone of the diminished 7th interval.
