For this improvisation, I had the sound of certain combinations of modes, chords and textures in my head before I sat down to play, but the melody didn’t reveal itself until I started playing. This is the result.
This was unusually short for my improvisations, but seems to carry that nocturnal narrative (hence the name I gave it) : dusk → glimmer → storm → quiet dawn.
Its brevity makes it feel like a condensed night-cycle, almost like a dream fragment.
Modes Used
This improvisation moves between G Aeolian, G Dorian and G Phrygian modes. These modes share much of their colour yet differ in character — Aeolian with its minor flavour due to its minor 3rd — melancholy, introspective and plaintive; Dorian, another minor sounding mode due to its minor 3rd, but slightly lifted by its raised sixth; Phrygian — also containing a minor 3rd, but much darker due to its flattened 2nd.
Although all three modes belong to minor territory (the tonic triad is a minor chord), the parent scales of the first two — B♭ major for G Aeolian and F major for G Dorian — create an underlying relationship similar to a dominant connection, with F as the dominant of B♭.
That link gives the first modulation a natural sense of release and lightening, and an almost classical form, as modulations to the dominant key were very common in Classical and Romantic music.
The modulation to Phrygian creates an overcast, inward turn to the mood.
Learn more about the Phrygian and Dorian modes.
Mode Reference Table
| Mode | Parent (Major) Scale | Notes | Character / Colour |
| G Aeolian | B♭ Major | G A B♭ C D E♭ F G | Natural minor: dark, introspective, elegiac. |
| G Dorian | F Major | G A B♭ C D E F G | Minor with raised 6th: warmer, open, gently hopeful. |
| G Phrygian | E♭ Major | G A♭ B♭ C D E♭ F G | Natural minor with flattened 2nd. Dark, mysterious, unsettled. |
Texture and Structure
The opening section unfolds in G Aeolian with a nocturne-like left hand (one of many possible nocturne textures): an octave bass on the downbeat, followed by a sustained middle-register chord that fills the remaining beats of each bar.
In the right hand, each bar begins with a four-part block chord struck on the first beat.
The remainder of the bar is filled with semiquavers alternating between the lowest note of that chord and the upper melodic note, the lower voice remaining constant throughout the bar while the upper voice traces a singing line that moves through non-chord tones.
This creates a two-voice interplay — a still harmonic base (not bass) supporting a lyrical melodic surface.
At the modulation to G Dorian, the texture changes completely. The right hand plays sweeping multiple-octave broken chords, descending and ascending in alternation, while the left hand anchors the harmony with broken octaves outlining the bass of each chord. The bass line moves largely stepwise, creating chord inversions, rather than root position.
The effect is expansive and luminous — a surge of brightness in the middle of the piece.
Then follows a darker section in G Phrygian consisting of low contrary motion arpeggios in both hands in a 4:6 polyrhythm.
The final return to G Aeolian is simplified and reflective: the left hand plays octaves while the right hand alternates spread block 4-part chords and single-line melody, slowing and allowing the earlier harmonic tension to dissolve into stillness.
Interaction of Texture and Modes
The texture in the first Aeolian section functions almost like counterpoint in miniature, despite being technically homophonic in texture (melody with chordal accompaniment). Within each bar, the repeated lower note in the right hand establishes a harmonic pedal point, while the moving upper voice articulates a melody that momentarily departs from and returns to the underlying chord tones. This continuous alternation creates a subtle inner dialogue between stasis and motion — a static lower part and a moving upper part (very common Classical and Romantic texture) — harmonic stillness supporting melodic freedom. This texture combined with the elegiac character of the Aeolian mood results in a passage of music that echos the Romantic fascination with inner voices and sustained resonance, and tradition of lyricism.
When the Dorian section arrives, the texture opens outward: wide arpeggiations and stepwise bass movement expand the register and harmonic spectrum.
In the Phrygian section, the polyrhythm of 4s in the left hand against 6s in the right hand transforms the arpeggiated/broken chord theme into something more unsettled.
Where the fast broken chord/arpeggiated texture creates energy within the Dorian mode due to Dorian’s brightened wistfulness, it creates turbulence in the much darker Phrygian mode.
Emotional Progression and Narrative Arc
- Opening Aeolian: introspection, pensive melancholy — the quintessential nocturne energy.
- Dorian middle: light breaking through — a surge of brightness that feels like a moment of reprieve or awakening.
- Phrygian section: turbulence and return inward — like the night thickening again, or the psyche meeting its own shadow.
- Return to Aeolian: resolution and stillness, perhaps a kind of acceptance.
Further Listening and Reading
Listen to another improvisation using the Aeolian mode: Smarrito e Lontano — Improvisation in B♭ Aeolian & G♯ Mixolydian ♭6
You might also like my recording of Mirror Tetraptych — Improvisation in C Dorian, Phrygian, Mixolydian ♭6, and A♭ major
Or Orbit – Improvisation in F Aeolian, D♭ Lydian and A♭ Ionian
Learn more about modes here: Complete Guide to Modes of the Major, Melodic Minor, and Harmonic Minor Scales
