Pop piano, film music and minimalism

Open any streaming platform: thousands of calm, moving solo-piano pieces rack up millions of plays. Their language inherits three traditions: pop songs (short, effective chord loops), film music (the art of building emotion) and American minimalism of the 1960s–70s (Terry Riley, Steve Reich, Philip Glass: repetition as an engine). The style looks simple; in fact it is fiercely demanding, because every note is heard.

The fingerprints of the style

• Short looping progressions: I–V–vi–IV (C–G–Am–F), vi–IV–I–V, I–vi–IV–V. Four chords are enough for an entire piece.
• "Open" chords: sus2 / sus4 chords (the third replaced by the second or fourth), add9, major sevenths. They sound modern and slightly suspended.
• A left hand in octaves or fifths, or in wide arpeggios: the bass is spacious and simple.
• Building in layers: start alone and bare, add a register, then a voice, then octaves; the emotional peak arrives two thirds of the way through.
• Ostinato: a motif repeated relentlessly while harmony or melody evolve slowly above or below.
• Minimalist processes: additive process (adding one note per repetition), phasing (two identical patterns drifting apart, as in Reich's Piano Phase), Glass-style arpeggios.

The pop loop and suspended chords

M:4/4
L:1/8
Q:1/4=76
K:C
%%staves {RH LH}
V:RH clef=treble
V:LH clef=bass
[V:RH] "Csus2"[Gcd]2 [Gcd]2 "C"[Gce]2 [Gce]2 | "G"[GBd]2 [GBd]2 "Gsus4"[Gcd]2 "G"[GBd]2 | "Asus2"[ABe]2 [ABe]2 "Am"[Ace]2 [Ace]2 | "Fsus2"[Gcf]2 [Gcf]2 "F"[Acf]2 [Acf]2 |]
[V:LH] [C,,C,]8 | [G,,G,]8 | [A,,A,]8 | [F,,F,]8 |]

I–V–vi–IV, the most widely used progression in pop. But listen to what brings it to life: each chord arrives "suspended" (D instead of E in C, C instead of B in G, B in A minor, G in F) and then resolves. These little tensions and releases in the inner voice create motion inside static harmonies. The left hand in octaves lays down a broad foundation.

Building emotion: the "film" technique

M:4/4
L:1/8
Q:1/4=72
K:C
%%staves {RH LH}
V:RH clef=treble
V:LH clef=bass
[V:RH] "Am(add9)"[Ee]4 [Dd]2 [Cc]2 | "F(add9)"[Cc]6 z2 | "C(add9)"[Gg]4 [Ee]2 [Dd]2 | "G(add9)"[Dd]8 |]
[V:LH] A,,E,B,C ECB,E, | F,,C,G,A, CA,G,C, | C,G,DE GEDG, | G,,D,A,B, DB,A,D, |]

The progression becomes vi–IV–I–V (same chords, different order, a more melancholy colour). The melody is doubled at the octave (you "sing louder" without banging) and the left hand unfolds wide arpeggios that include the ninth. In a piece, this passage would be the second or third statement of the theme: the first would have been a single line in the middle register over sustained left-hand notes. Same material, growing density: that is the secret of all film music.

Minimalism: phasing

M:4/4
L:1/8
Q:1/4=120
K:C
%%staves {RH LH}
V:RH clef=treble
V:LH clef=bass
[V:RH] cega gede | cega gede | cega gede |]
[V:LH] C,E,G,A, G,E,D,E, | E,G,A,G, E,D,E,C, | G,A,G,E, D,E,C,E, |]

Both hands play the same eight-note pattern. Bar 1: together (an octave apart). Bar 2: the left hand has "moved ahead" by one eighth. Bar 3: by two eighths. With each shift, new harmonies and rhythms emerge, without a single new note being invented. In Piano Phase, Steve Reich lets this drift happen very gradually between two pianists; here we do it in steps. Try repeating each bar four times before moving on: the hypnotic effect appears.

The additive process

Another minimalist technique: start from a two-note fragment, repeat it, then add a note, then another… Philip Glass builds whole pieces this way from arpeggios that lengthen and shorten. The rule: change only one parameter at a time (a note, a chord, a register), so the listener hears every change as an event.

The recipe

1. Choose a four-chord loop and a slow tempo (60–80).
2. Write a left-hand pattern (octaves, or a wide arpeggio) and a simple 8-bar theme, almost singable by a child.
3. Section 1: theme alone, one voice, middle register, p.
4. Section 2: same theme, arpeggiated left hand, a counter-melody or a high ostinato.
5. Section 3 (peak): theme in octaves, one register higher, fuller chords, f.
6. Coda: back to the bareness of the opening, and a final suspended chord (sus2 or add9).

Your workshop

1. Listen to and compare several progressions in the chord progressions page; pick the one that matches the emotion you are after.
2. Improvise over the pop backing track in C until you find a two-bar phrase you want to play again.
3. In the piano roll, build your piece in three sections (bare, enriched, peak) plus a coda, 24 to 32 bars long.
4. Add an 8-bar minimalist section: a right-hand ostinato that shifts or lengthens while the left hand holds the loop.
5. Export or copy the theme into the ABC editor to share it.
6. Self-check: draw your piece's intensity curve on paper. If it rises gradually to the two-thirds point and then falls back, your construction is solid.