style-bonobo

name: style-bonobo description: Production lens for Bonobo-style tracks — organic samples, justified layers, call-and-response phrasing. Use when writing or critiquing a track that needs warmth, restraint, and humanity. Reference album Black Sands (2010). BPM range 90-140 (wider than commonly assumed), bright spectrum (median centroid 1952 Hz), modest dynamic range (~5× typical) with title-track exception that opens in real silence.

Simon Green / Bonobo. The producer who built a career on getting the source material right and saying what you mean musically in as few words as possible.

Musical DNA

• Samples > synths. Every sound (even when synth-rendered) should feel like it could be a sample of a real instrument. Acoustic instruments pitched in ways they couldn't be played. PaulStretch'd drones underneath.
• Justification. From his Akai sampler days: every voice has to earn its slot. If you can mute it and the song doesn't suffer, cut it.
• Call-and-response. Layers don't just stack — they answer each other. Bell phrase asks; mid-pluck answers. Don't have multiple voices "shouting" at the same rhythm.
• Random LFO on sample start. For loops, randomise the start position slightly each fire to humanise it (in Strudel: degradeBy(0.1) + slight nudge variation gives a similar effect).
• PaulStretch'd drone bed. Take a phrase, stretch it 8x with PaulStretch, sit it low in the mix as a sound bed. In Strudel: use s("white") lpf'd super low + slow swells, or detuned sawtooth at the chord root with long attack.
• Tempo isn't the signature; phrasing is. Black Sands spans 90→140 BPM across tracks. The constant: organic percussion, harp/kalimba/marimba samples, breathy vocal stems.

Tracks analyzed (Black Sands, 2010)

(BPM detector occasionally latches half/double time on samples; verify by ear.)

Structural template (from data)

• BPM 90-140 — tempo varies per track, NOT a single album tempo
• Spectrum bright: 1.4-2.8 kHz centroid (hats, vocal air, bells lift the high end)
• Onset density 3-5/s — busy, not minimal
• Dynamic range 4-6× for grooves; closers/title tracks can open in true silence
• Keys vary (B, F, F#, C, C#) — not pinned to one tonic

In Strudel

setcps(96/60/4)

// Kong-style: kalimba-bell call (the album's signature melodic gesture)
note("<F#4 ~ C#5 ~ E5 ~ G#5 ~>/2").s("triangle")
  .attack(0.005).release(0.3)
  .gain(0.35).room(0.8).delay(0.4)

// Mid-pluck answer offset by an 8th — call-and-response
note("<~ A4 ~ C#5 ~ E5 ~ F#4>/2").s("triangle")
  .gain(0.3).delay(0.3).delaytime(0.375)

// PaulStretch'd drone analogue — detuned slow saw under everything
note("<F#2 C#2>").s("sawtooth").detune(0.15)
  .attack(2).release(3).lpf(sine.range(150, 500).slow(32))
  .gain(0.45).room(0.95)

// Woody kick (not 909 — closer to an Akai sample with body)
s("bd:5*4").gain(0.65).lpf(220).attack(0.001).release(0.18)

// Off-beat hat with humanised gain (the "sample, not sequencer" feel).
// NOTE: use an explicit gain PATTERN, not rand.range — `rand` has no .range in
// the @strudel/web player build and throws at runtime. (sine/perlin.range are OK.)
s("hh*8").gain("0.3 0.18 0.42 0.2 0.34 0.18 0.4 0.22").pan(sine.slow(7).range(-0.3, 0.3))

// For the "Black Sands"-style closer: open in real silence
// All voices start with .mask("<0 0 0 0 1 1 1 1>/8") to hold off entry

Melodic DNA (transcribed from "Kong")

Basic Pitch → music21. Caveat: full-mix transcription, so contour blends melody + harmony; intervals/pitch-classes are aggregate.

• Key: F♯ minor (0.886 confidence)
• Motion: mostly repeated notes + stepwise (M2), with occasional m3 / M6 leaps. NOT heavily arpeggiated — the kalimba ostinato hovers and steps rather than wandering.
• Scale-degree emphasis: F♯ (tonic), A (♭3), C♯ (5), E (♭7) — F♯-minor-pentatonic core (F♯ A B C♯ E)
• Contour: F♯4 G♯4 E5 A4 F♯3 A3 C♯4 F♯4 G♯4 A4 E5 — hovers around F♯-A-C♯, steps up to E5
• Chord progressions (web-verified, Hooktheory/ChordU):
  • Kong is F♯ Dorian — not just minor; the raised 6 (D♯) is the modal color.
  • Black Sands: Cm → A♭maj7 → Fm → B♭ (i ♭VI iv ♭VII) — a quintessential Bonobo cinematic-minor loop.
  • Eyesdown (feat. Andreya Triana): E minor — Em → Bm → A → D → G.
  • Kiara: B♭ minor — B♭m → E♭m → G♭ → E♭ → B♭.
  • Pattern across tracks: minor/Dorian home, ♭VI and ♭VII borrowings, simple loops.
• Compose like this: stay in F♯ Dorian / minor pentatonic; build a repetitive ostinato (repeat notes, step by M2, leap by m3/M6 sparingly). Hypnotic, not developmental. For chords, the Black Sands i-♭VI-iv-♭VII is the move.

Deeper cuts (measured)

Beyond Black Sands — two catalog favorites measured (Basic Pitch + librosa), revealing a more dynamic Bonobo than the album-average "~5×" suggests:

Both hit ~50× dynamic range — the open-in-near-silence → full-mix bloom move, not a flat groove. Both sit in D minor. Two distinct melodic modes:

• Cirrus = pedal-tone hammer — D repeated relentlessly (×1060 in the transcription), then F (♭3): a D-minor-pentatonic ostinato hovering F4↔E5. Hypnotic.
• Nightlite = a real stepwise melody — D/A/C/F/G spread, P5 + M2 motion (an actual singable line, not a pedal).

Compose like this: D minor home, build the big dynamic arc (open near-silent, bloom to full mix, ~50×). Pick a mode — hammered-pedal ostinato (Cirrus) or stepwise vocal-ish melody (Nightlite). The Black Sands i-♭VI-iv-♭VII loop still anchors the harmony.

Critique any track through this lens

• Does every voice EARN its slot? Mute each in turn — if the song still works, that voice doesn't belong.
• Are layers in CALL-AND-RESPONSE, not call-and-call? Two voices in the same register on the same grid = one needs to move (offset by an 8th, drop an octave, or cut).
• Are samples HUMANISED? Grid-quantised triggers sound robotic. Add degradeBy(0.08) or slight nudge variation.
• Is there a DRONE BED underneath? A long sustained low note (PaulStretch or sustained saw at chord root) gluing the mix.
• Is the source material ACOUSTIC-feeling? Even if it's a synth, it should sound like a kalimba, harp, or sample of one. If it sounds like a saw wave, you haven't done the work.
• Is the spectrum BRIGHT (1.5-2.5 kHz centroid)? If centroid < 1000 Hz you're in Kiasmos territory, not Bonobo.

Sources: per-track librosa analysis of Black Sands (Prelude, Kong, Eyesdown, 1009, Animals, Black Sands) · Ableton: The Path to Migration · ADSR: Bonobo's Innovative Techniques · Attack Mag: PaulStretch Ambience

Melody & Harmony DNA (Hooktheory) — melody + functional harmony

Scale-degree transcriptions from Hooktheory/TheoryTab — melody contour + chord function, free & community-sourced. Usually partial (the song's hook), not the full multitrack: internalize the melodic/harmonic shape and write original around it, don't just transcribe.

Kong — key F# dorian · src Hooktheory

progression: F#m E B E F#m E B E F#m E B E B7 (i VII IV VII i VII IV VII i VII IV VII)

• melody — D#4↔B4 (med A4, 8st) · pcs A B F# G# D# · -M2 ×7, +m3 ×6, +M2 ×6, -m2 ×5, +m2 ×2, -P4 ×1
• notes (36, full): note("fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ gs4 ~ ~ ~ fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ gs4 ~ ~ ~ fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ gs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ gs4 ~ ~ ~ fs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ b4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ds4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ gs4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ gs4")

Sourced from: Hooktheory.

Extracted DNA — measured loops + section arcs (analysis pipeline)

Ripped from the reference audio (demucs stems → Basic Pitch → music21 → BTC large-voca chords → allin1 sections). Progression = harmonic skeleton, arc = structural blueprint — feeding these into a compose is what made the crank land vs. style-prose alone.

Full cards (per-section Strudel note() seeds + register/interval/octave-displacement DNA) — in the vault at 02_SOURCES/Music/analysis/pipeline-cards/style-bonobo/: 1009.md, animals.md, black-sands.md, bonobo-cirrus.md, bonobo-nightlite.md, eyesdown.md, kong.md, prelude.md.