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(listen from 2:31)

I don't get how from the [D] part's last bar BbM7 (IV)

you could go to the [E] part (Ab/C).

And if you see the [E] part, you could see that I analyzed it as a modulation to Ab Major key.

Because if you see the [F] part, you could see that the chords and the melodies are the same as the [E] part.

So my interpretation is, from the [D] part ( F Major key ), It suddenly modulated to Ab Major key.

But How?..

How did he just went from the [D] part's BbM7 (IV) and just suddenly modulate to the Ab key ?

  • 2
    This is your third or fourth post regarding the same collection of pieces. Please try to ask one question, learn from it, and apply that knowledge to subsequent analyses Commented Sep 20, 2018 at 13:35
  • 2
    @CarlWitthoft But I thought you have to write about one question at a time. Thats why I divided all the question from the same piece..and they're all different type of harmonic movement so how am i supposed to learn from just one question? Commented Sep 20, 2018 at 13:40
  • 1
    @HyunYooPark I think maybe Carl is right on this one. Usually pieces that need multiple clarifications get combined into one question.
    – user45266
    Commented Sep 20, 2018 at 17:30
  • But I got told that you should ask question individually on music.stackexchange.com/questions/66524/… Commented Sep 21, 2018 at 12:25

1 Answer 1


You may be interested in the concept of direct modulation. Also sometimes called "phrase modulation," it's a modulation that's created with no harmonies to connect the first key with the second. Instead, the music just abruptly switches and is magically in a new key without any harmonic transition.

It sounds to me like that's all that's happening here: we end a phrase and we suddenly move to A♭ major.

This is really common in popular music, where these phrase modulations often move up by half step.

  • But how do you see at as a "end a phrase" if it ends with BbM7 ( IVM7, SubDominant ) instead of a Tonic ? Commented Sep 21, 2018 at 1:51

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