Intro:
Bright
Star I and IIfor solo trumpet (in
c)
(fragment from page one of
the score of movement I: outward bound)
(fragment from page one of
the score of movement II: flare)
| mouseover for controls / lower left for full-screen mode |
| back to Picture/Poems: Central Display | About Cliff Crego |
Outward Bound: Projecting music into acoustic space
the new promise of an ancient instrument . . . . .
Bright star, would I were stedfast as thou art—
John Keats
Bright Star I: the two voices
Continuity
Normally, when we think of polyphony we think of two or more voices
going on at the same time. With the StarCycle pieces for what are traditionally
considered monophonic instruments, like horn or flute, or in this case,
trumpet, I'm very much interested in a new kind of many-voiced or polyphonic
texture which is more temporal than spatial. That is, the different voices
or qualities of movement are justapositioned in time, one at a time, and
not all at once, as in, for example, a fugue or invention. The effect, however,
is similar. This is evidently because in musical experience, time and space
easily interpenetrate and merge with one another, just as a melody of single
notes modulates into a chord as we push the sustaining pedal down on a
piano.
Of course, there is nothing really new in this. What I'm calling temporal
polyphony here is already incipiently present in especially, for example,
the Baroque idea of the contrast between tutti and solo, or forte and piano.
We might sketch this like this:
[Notice that in the Italian, "piano" not only refers to volume, but also
to a wide-open plain. So, in a way, the image of the contrast of mountains
and plains seems a natural one.]
II: Flare: projecting music
into temporal glissandi . . .
The key musical or rhythmic feature herethe shape of the music's change
is a smooth, continuous 'getting faster' and 'getting slower'. The music does this
in a necessarily very precise way, moving in steps until the tempo or speed of the
basic meter is doubled, then doubled again, and again. Or vice versa: halved and
halved again, and so forth. This is directly analogous to singing or playing a sliding
tonea so-called glissandofrom one pitch to another one an octave higher, and
so on. That's why I call these doublings of tempo octaves. Here's a sketch of the
cycle of relationships. (Mathematicians, among whom I unfortunately do not include
myself, will notice, to use their language here for a moment, a fractal-like iterative
function at the root of this pattern of movement, with self-similar relationships at
differences of scale. The key remains, however, that it sounds beautiful, much as if
the graceful spirals of ferns had been translated into sound.(see photo/miniature:
metaphor) This phraseself-similar relationships at a differences of scaleis an
important one to remember, I think. This is because it points to a simple yet powerful
way of looking at or thinking about both structure and movement in the future.):
| To view a sketch of the tempo relationships for Flare,
go to Four octaves of tempo |
Copyright © 1999-2011 Cliff Crego All Rights Reserved