Saariaho · Petals

Petals

3 min readLast updated November 2026 Sign in to track progress
Table of contents

D – Dynamics

  • Very wide dynamic range from ppp to ff.
  • In stave 26 dynamics move from ffff to pppp.
  • Hairpins also apply to reverb intensity rather than loudness.

R – Rhythm, Tempo, Metre

  • Notated tempo changes include 80, 54, 66.
  • Markings such as dolce, intenso, furioso allow interpretative freedom.
  • Lento sections vary significantly; the final stave may last up to a minute.
  • Staves 10–13: no fixed pulse, but rhythmic drive created by sextuplets, semiquavers, triplets, septuplets.
  • Overall sense of pulse is ambiguous but rhythmic energy persists.
  • Staves 17–27: high F♯ notes on fermatas (stave 22), creating suspended time.
  • The low C drone frequently marks phrase openings.

T – Texture

  • Texture resists standard categories; sometimes monophonic, sometimes layered.
  • Richly layered sonorities; implications of homophony appear.
  • Double stopping is common.
  • Pedal/drone textures appear, especially the left-hand C.
  • Two-part textures appear in A sections (e.g., staves 8–9 and 13–16).
  • Texture often built through timbral layers rather than polyphony.

S – Sonority (Instrumentation/Techniques)

  • Extensive extended techniques:
    • EF (estremamente flautando) to imitate flute timbre.
    • Tremolando, vibrato, senza vibrato, molto vibrato, naturale, normale.
    • Trills and mordents, sometimes on harmonics or during glissandi.
    • Artificial harmonics.
    • Glissandi throughout.
    • Bow noise.
    • Left-hand pizzicato.
  • Microtonality: quarter-tones, quarter-sharps, quarter-flats (24 pitches per octave).
  • Electronics:
    • R = Reverb, H = Harmoniser.
    • Signal processing shapes timbre; “dirty” vs “clean” instead of consonant/dissonant.
    • Reverb: normally 2.5 s, at stave 21 = 15 s, final = ~30 s decay.
    • Hairpins affect reverb intensity.
    • In Section B, there is no harmoniser, only reverb.
  • Synesthesia influences colour treatment.
  • Sonority is central; timbre and spectral colour dominate.

M – Melody

  • B sections supply clearer melodic material.
  • Staves 4–7: rapid demisemiquavers, chromatic quarter-tone motion; material drawn directly from Nymphéa.
  • Stave 10: melodic characteristics with varied intervals and ascending ideas; descending motif at end of 10 returns at end of 11 with an added note.
  • Microtonality dominates A sections; B sections use more conventional pitch materials.
  • Staves 17–27: repeated B → A♯ figure; low pizzicato C drone under B → A♯ pattern.
  • Near stave 27: high F♯ becomes prominent; glissando leads to highest possible pitch.

I – Instrumentation (Acoustic/Electronic Interaction)

  • Solo cello expanded through harmoniser and reverb.
  • Mono vs stereo options:
    • Stereo = quarter-tone up and quarter-tone down.
    • Mono = quarter-tone up.
  • Electronics extend timbral palette; harmoniser absent in B sections.
  • Traditional instrumental limitations overridden by processing and extended techniques.

T – Tonality

  • Not conventionally tonal; not strictly atonal either.
  • Pitch centres emerge through repetition (e.g., C from stave 15 onwards).
  • Stave 70+: ascending/descending gestures end on F♯.
  • Dyads appear at points of resolution, but these are not cadences.
  • Tonal function replaced by spectral/colouristic function.

H – Harmony

  • No conventional harmony or functional progression.
  • Harmony arises unintentionally via overtones and harmonics (e.g., artificial harmonic on C♯ notated as F♯ but sounding an octave above = C).
  • Quarter-tone harmoniser creates vertical spectra rather than chords.
  • Composer’s distinction: timbre = vertical, harmony = horizontal.
  • Harmonic “states” rather than harmonic movement.

Structure

  • Continuous unfolding with clear A/B alternation; seven major sections.
  • A = fragile, colouristic; B = energetic, rhythmically and melodically clear.
  • A (1–3): single notes, glissandi, trills, tremolandi, bow noise.
  • B (4–7): rapid demisemiquavers, chromatic quarter-tone motion.
  • A (8–9): lento/free; slow two-part texture over D pedal.
  • B (10–13): continuation of earlier melodic ideas.
  • A (13–16): high artificial harmonics; two-part textures; double-stopped harmonics.
  • B (17–27): climactic variation section; persistent C drone, B → A♯ idea, ascent to extreme F♯.
  • A (28–30): lento/free; bow noise, glissandi, double-stopped harmonics.

In stave 26 dynamics move from ffff to pppp.