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Saariaho Petals (Harmony and tonality (Particular intervals of note can be…

- - - - lento, v slowly harmonics glissando trills cresc.
    - - 60 cbpm, decuplet dsqs, microtonal and chromatic runs, long glissando, rapid changes of dynamics.
    - - Lento, trills, harmonics, ppp or pp.
    - - 54 cpm, espressivo, ends with rit. and new tempo of 40 cbpm, more varied melodically(leaps and repeated notes) and rhythmically than Staves 4-7. Several short motifs identifiable.
- - - - Semibreves indicate extreme slowness- long notes of imprecise length.
    - - Groups of 10 dsqs, each a crotchet in length. Although staves 4-6 have 4 groups each, there is no sense of quadruple metre.
- - - - Sone of the techniques would be familiar to late 19th/early 20th century cellists. Unfamiliar 20th century practices include:
        
        Long/ very long trills, sometimes on single bowed notes, or with an untried note(Stave 15, beat 2- stave 16); on harmonics, and during a glissando.
        
        Harmonics(usually known as "artificial/stopped", compared to "natural"/"open") occurring simultaneously with ordinary notes(Stave 14), or with other harmonics(end of stave 13)
        
        Glissandi(Staves 26 and 27, beat 2)
        
        Microintervals(Smaller than a semitone)
        
        Unusual bow pressure- the wedge shapes indicate "to produce a scratching sound, in which the audible pitch is totally replaced by the noise" and where it is reduced to "move back from noise to tone again". Possibly this is inspired by thinking of "A water lily feeding from the underwater mud".
    - - Live electronics include a digital reverb unit and a harmoniser, set out as on page 406 in the Anthology.
      - The Digital Reverb Unit has a variable reverb time(here no more than 50% and no less than 20%).
      - For most of the piece reverb is set to 2.5 seconds.
      - This is increased later to 15 seconds at stave 21.
      - Glissandi create blurring effects particularly in determining a sense of pitch.
      - Stave 30 has a reverb time of 30 seconds.
      - Harmoniser does not harmonise the a melody- it enriches sounds by shifting their pitch and combining the pitch shifted version with the original.
      - Saariahoasks for pitch-shifted version both about half a semitone higher and lower with the original.
      - Saariaho asks for pitch-shifted version both about half a semitone higher and lower with the original.
      - The harmoniser(she asks for a Yamaha SPX90 which is now discontinued) is usually activated a little in advance and deactivated shortly afterwards as in staves 2-3 and 8-9.
    - - Huge variance, as seen in the long section starting at stave 17.
      - Staves 25-26 range from ffff to pppp.
      - Some "fragile coloristic passages" are at times dynamically robust, especially when noise replaces tone.