I’m not familiar with English, so I’m writing using google translation.
In Melodic minor, the IVth chord is not dominant, so the current notation is likely to cause misunderstanding.
IV7 → IV7(#11)
V7 → V7(b13)
VII min7(b5) → VII alt
I believe the above is correct.
I’m seriously learning Chords and want accurate notation.
Besides, I think V7 b9(b13) or Hmp5↓ is correct for the Vth of harmonic minor.
both reference provide very good information on these scales.
[Harmonic Minor scale - Wikipedia] Harmonic minor scale - Wikipedia
[Melodic Minor scale - Wikipedia] Minor scale - Wikipedia
V7 (dominant 7) has a strong power to return to I. It comes from the fact that V7 has a leading tone and a tritone that goes to I.
IV7 in the melodic minor scale has neither, and therefore has no dominant function. It is correct to be a 7th chord, but it is not dominant as a function within the scale.
I wish the notation was more accurate, as the scaler is great software.
you might need to “borrow” a chord to represent it then. i use something called “HookPad” as well and similar the chord representations don’t seem to always align so i search and pull an alternative chord to match “reality”. i think you can borrow from the “modulation” section in Scaler if you need to get another representation. or you might need an inversion to set it correctly.
