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MacWorld 1999 January - Disc 2
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Macworld (1999-01) (Disk 2).dmg
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Symbolic Composer 4.2
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Piano Inventions
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About Piano Inventions
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1998-10-26
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* Inventions *
- for solo keyboard
- Nigel Morgan
These six inventions represent composition experiments with
Symbolic Composer. Each piece integrates a particular musical
objective with the exploration of S-COM language constructs.
Invention I - in three distinct sections, a group of music
gestures are generated and processed whilst being co-ordinated
via Timesheet scores; each gesture and its process acting like a
separate instrument. The music makes considerable use of the
Neural Expert to guide processing using defined rules and
constraints.
Invention 2 - has its tonality and pitch series generated from
the hopalong algorithm - a close relative of the Mandlebrot
fractal. It is the most 'invention-like' of the series.
Invention 3 - is generated from a symbolic conversion of samples
of white noise. This material is overlayed on the tonality of C
major. Using custom-built ornament processors three statements
of the material are treated in different ways following Neural
Expert 'rules' . These rules look at note coincidence and
relationships and trigger variants, in this case distinct
appoggiatura-like ornaments, both diatonic and chromatic.
Invention 4 - is another Timesheet-based composition employing
five separate 'lines' of music material. Some of this is
metrical and divisive, some is more gestural and 'free' resulting
from conversions made by white-noise generation. Thus, the
music has a special mix of rhythmic movement.
Invention 5 - is a realisation of a poem 'Landscape' by Margaret
Melicharova. This text is used directly as symbol material. The
tonality and note-length material occupies the world of
Keith Jarrett and New Age piano stylists.
Invention 6 - takes as its starting point a chord sequence
'found' at the piano and directly transformed into a series of
individual tonalities. These tonalites are then organised into a
Library Manager file and triggered via the template-controlled
mechanism unique to S-COM. The chord sequence is heard directly
in a prime number duration sequence as a refrain between
arpeggiated variants. There are 2 variants shown in the source-files
demonstrating different approaches to template control.