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Cross modifications : large chamber ensemble : youth orchestra

by Peter McNamara (2011)

Score Sample

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Audio Sample

Performance by Orkest de Ereprijs, Rob Vermeulen from the CD Selected works by AMC represented artists

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Selected works by AMC represented artists


This item is not commercially available from the Australian Music Centre. We regret that we cannot offer it for sale.


Selected works by AMC represented artists : vol. 22

Library shelf no. CD 2335 [Available for loan]

Cross modifications


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Cross modifications / Peter McNamara.

Library shelf no. 785.3219/MCN 1 [Available for loan]

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Work Overview

Cross Modifications represents how many areas of the Australian Landscape can experience drastic change over time. These dramatic changes are normally dependant on rainfall and can result in large areas of little or no vegetation and life during dry periods, and a complete transformation to dense vegetation and wildlife population during wet periods.

Cross Modifications contrasts two harmonic spectra (chords based on the harmonic series) that gradually change over time and include various parametric filtering shapes. These two spectra initially only use equal tempered pitches, but gradually incorporate various quartertonal pitches as the work unfolds. Melodic lines are added over these spectra in the voices and electric guitar as an added dimension to the texture. The two spectra also initially appear independently of each other. This changes as the two spectra increasingly overlap as the work progresses until they are placed on top of each other at the climactic point. The pitches of each then gradually fade out during the short finale.

Work Details

Year: 2011

Instrumentation: 2 sopranos, mezzo-soprano, 2 flutes, clarinet in B flat, 2 saxophones, horn, trumpet in C, 2 trombones, tuba, percussion, piano, electric guitar, bass guitar.

Duration: 3 min.

Difficulty: Medium — Some use of quartertones, but suitable for youth/amateur performers.

Dedication note: Dedicated to Orkest de Ereprijs. Dedicated to Orkest de Ereprijs

First performance: by Orkest de Ereprijs, Rob Vermeulen — 18 Feb 11. 2011 Young Composers Meeting Final Concert, Gigant Concert Hall Apeldoorn, The Netherlands.

Winning work for the National Youth Orchestra of the Netherlands commission (2nd place) in the YCM.


Performances of this work

6 Apr 2011: at 2011 Gaudeamus Music Week (Utrecht Conservatorium).

18 Feb 11: 2011 Young Composers Meeting Final Concert, Gigant Concert Hall Apeldoorn, The Netherlands. . Featuring Orkest de Ereprijs, Rob Vermeulen.

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