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Retonalitization: The same pitched melody in different keys?

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    • yuta @yuta

      A songs of a certain idol group in Japan are becoming a hot topic in music theory maniacs.

      The song is “偶然シンフォニー(Accidental Symphony)” by Not Equal Me. The first chorus part starts at 0:40. It’s in the key of F♯(tho it modulates to B major in mid way). The melody also starts with F♯, the tonic note.
      Then from 2:59 starts the third chorus part. Here the melody starts again with F♯, but surprisingly, the chord progression is E-F♯-D♯m-G♯m, which clearly suggests B major (or G♯ minor) key tonality!

      The accompaniment is modulated to the subdominant key, while the pitches of the melody is preserved. So the tonal function (kernel) of each tone in the melody is entirely exchanged. This is more than just reharmonization, if I call it, “Retonalitization” or “Retonalization”? …as the tonality of the melody is rearranged.

      I think that this technique is even more intriguing than bitonality because a single melody is dressed in two ways.

      Anyway,

      I’d like to listen to more examples using this technique! If you know one, please share it😊

      *This is a sample topic to demonstrate how to use the community.

      • This topic was modified 4 months ago by yuta.
      • This topic was modified 4 months ago by yuta.
      • This topic was modified 3 months, 3 weeks ago by yuta.
        Sonni @sonnyan

        “Hana Ha Odoreya I-Ro-Ha-Ni-Ho” starts with a pentatonic melody in Fm key.
        Now listen to the chorus part at 0:52. The same melody is repeated, but the accompaniment is in Cm key. The opposite pattern as yours; the modulation to the dominant key.

        The point here is that the melody is pentatonic. The tones are C, E♭, F, G and B♭. This is a well-known C minor pentatonic. So from the start it kinda holds bitonality—C minor pentatonic superimposed on F minor key chords. But it’s not much recognizable because all the C minor pentatonic scale tones are the part of the F minor scale.

        The difference between Fm key and Cm key is whether to have flat on D. But the melody does not have it. This enables the bass in the opening to play D♭, realizing “retonalization”.
        Pentatonic scales may be able to play an interesting role on implementating this technique.

         

        • This reply was modified 4 months ago by yuta.
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          yuta @yuta

          Wow, thanks!

          The same melody is repeated, but the accompaniment is in Cm key. The opposite pattern as yours; the modulation to the dominant key.

          As for the chronological order, it certainly involves a modulation to the dominant key. However, in terms of the actual composition process, the process might be the reverse. I speculate that the melody was originally composed in the key of C minor, and then later adapted as the intro, with the F minor key assigned afterward.
          The last phrase “F-G-F-E♭-C” alone evoke me the sense of “re-mi-re-do-la” in Cm more strongly than “la-ti-la-so-mi” in Fm, from my experience. especially taking into account that it’s the finishing part of the intro.

          In both cases, the melody fits more to either of the two keys; and it can be observed roughly by how stable kernels / shells are assigned to the important notes. I think it would be ideal if a melody fits perfectly to both keys, making it indiscernible which key the melody originally aims at.

          Pentatonic scales do have the potential to get re-tonalitized.
          Now I think it wouldn’t be surprising if composers from the early 20th century like Debussy, Bartok or Ravel already tried this method, for both the pentatonic scales and polytonality are keywords of that era.

          • This reply was modified 4 months ago by yuta.
            Johnny @john

            Here’s another example:

            1:09- Cm key
            2:16- Fm key

            The main motif is “C-D-E♭-B♭”. D natural is foreign to Fm key but the composer skillfully avoids the clash between D♮ and D♭, initially employing D♮ in a Dorian mode-like manner with the Fm chord, followed immediately by a progression to D♭ as soon as that motif ends. Thrilling.

            Again, to the subdominant key.

              yuta @yuta

              Thanks!!

              Again, to the subdominant key.

              I think it’s easier to adapt a melody to the subdominant key rather than to the dominant key.
              The D♭ major chord is ♭VII if interpreted in Cm key. ♭VII is a very common non-diatonic chord, and sometimes, even playing the note Ti over that chord is acceptable, unless emphasized too much. It could be why the melody fits to the subdominant key this much naturally.

                Amachan @amachan

                In the first movement of Ravel’s String Quartet in F major, the second theme is presented in D minor key during the exposition(1:55) and in F major key during the recapitulation(6:15), with the melody maintaining fixed pitches. As the relative keys involves no difference in key signatures, this could seem a bit simple way of retonalization, but just for your reference.

                • This reply was modified 4 months ago by Amachan.
                  yuta @yuta

                  Thanks!

                  I also found a questionable case from Debussy, “Les collines d’Anacapri”:

                  from 0:30 the main phrase starts. It in the key of B. The phrase consists of B, C♯, D♯, F♯, G♯, A♯; the Omitted-4 B major scale.

                  from 2:13 the melody appears again, but the left hand plays D♮. The area is very much modal so I cannot clarify the key, but considering that D♯ is replaced with D♮, it’s B melodic minor. So kinda seen as retonalitization to parallel minor key.

                  The phrase contains D♯ in the later part. In this case, Debussy avoid clashing by using chromaticism. The left hand goes crazily chromatic obviously just before when D♯ and D would clash😂

                  I believe that the pentatonic-ish-ness (though it’s just omitted-4, not really pentatonic) contributes to blurring the major key qualities from the outset, making it easier to switch the accompaniment to parallel minor in the middle section as a result.

                   

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