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Spectro-morphological Structuring Process in Gilles Gobeil’s “Le Vertige Inconnu”

Section B

Introduction | Spectral Overview | Section A | Section B | Section C | Section D | Section E | Summary | Resources

Section B provides a contrast to the more gesture dominated section A. The gestures within section B fail to give a sense of direction and therefore function as what Smalley terms “texture-framing.”[2] An increase of spectral energy from 2:35 to 2:50 provides the first sense of gestural motion in Section B. However, the morphology of the terminating gesture is an upward motion in spectral energy and lacks the decisiveness of the primary motive.

The following subsection appears as a different sounding environment through the use of reverb and resonance. Also significant to this subsection is the strong presence of harmonic frequency spectra, contrasting with the inharmonic spectra that dominate most of the work. This transition to the second subsection of B is shown below. The resolution and color are varied to better highlight the harmonic spectra.

click on the picture for sound

Iterations from another source, perhaps a flute or an air brake, are mixed with the more harmonic iterations. Like previous textural areas, the continuant moves towards termination through increasing spectral density. Underscoring the importance of the principle motive, one can now intuitively hear how the final descending attack-decay gesture fulfils the terminative function that the upward gesture, bisecting this section, could not.

Section B - 1:47 to 3:10

[2]Ibid: 84.

Introduction | Spectral Overview | Section A | Section B | Section C | Section D | Section E | Summary | Resources

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