Is there any formulation to switch from Phrygian mode to Harmonic minor in same key. Like from A Phrygian to A Harmonic Minor.

What I thought so far?

A Phrygian Notes:

A Bb C D E F G A

A Harmonic Minor Notes:

A B C D E F G# A

Since we got difference on B and G notes I thought going from G# to G but it does not sound well (Obviously) and then tried Bb to B once more they are half-step away and it did not do well netiher.

So my question is how to switch between these two scales smoothly?

  • There’s no formulation that I’m aware of but I prefer using common tones in general to link parallel scales or harmonies. Are you composing or improvising? Commented Mar 10, 2021 at 7:02
  • I try to improvise and get some Andalusian tones by mixing these two scales/modes (I don't know the correct term)
    – Nabla
    Commented Mar 10, 2021 at 7:58
  • The uncommon tones, 2 and 7 are not strong melodic notes in either scale but good passing tones, try exploiting the differences by alternating the same pattern with the two scales, for example C B A B C, C Bb A Bb C or E F G Bb A, E F G# B A. Commented Mar 10, 2021 at 8:34

1 Answer 1


The change will probably occur at the end of a phrase at least - not right in the middle! So the new 'key' of Am can be preceded with a run up maybe E F G G♯ to the 'new' root of A.

It's not that much of a change - parallel keys get used an awful lot. And since both are A minor based, it will depend on what harmonies are going on underneath. You seem to be mixing scales and keys, name-wise. They're not synonymous, and there's nothing wrong with mixing and matching all the notes from both. Accidentals are made for doing that.

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