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Magnus Lindberg

Publisher: Chester Music

UR (1986)
commissioned by IRCAM
Publisher
Edition Wilhelm Hansen, Helsinki
Category
Works for 2-6 Players
Year Composed
1986
Duration
15 Minutes


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Programme Note
The name UR belongs to the ancient Sumerian town, and to a Swedish word with many meanings. It corresponds to the English preposition of, and is used as a prefix (in German as well) in many words expressing something extreme or original, also primitive. But it also has the meaning of a clock or a tempest. UR was commissioned by IRCAM and premiered by the Ensemble InterContemporain, in connection with IRCAM's Symposium on Personal Systems for Computer Music (October 1986).

The instrumental and computer parts are written using calculations of rhythms and harmonies programmed in LeLisp on the Macintosh. Formalization of rules for the automatic creation of rhythmic events, gestures, and temporal processes in the piece is relatively straightforward. Defining a similar environment for processing harmonies and chains of chords is more complex. To get musically more coherent results I created a model of rules, set up as a field of accepted qualities for chords, to formalize processing of harmonies.

The microcomputer is also used in performance to control MIDI instruments; the score is organized as a set of sequences for the computer part, being triggered in real time by the pianist during the performance. Every time the pianist passes a keystroke form a MIDI-keyboard to the computer, combinations of precomposed chord-sequences, rhythm patterns, articulation shapes, etc., are generated in real time and played immediately by the Yamaha TX-816 synthesizer. This allows a very flexible way of organizing synchronization between live performers and computer without the use of a click-track.
Performance software was implemented in PreForm by Lee Boynton.

  • Ensemble
    Cikada
    Conductor
    Christian Eggen
    Albedo:
  • Ensemble
    Ensemble Musique Nouvelle
    Conductor
    Georges-Elie Octuors
    Ricercara:
  • Ensemble
    Sonanza
    Conductor
    Jan Risberg
    Caprice Records:
  • Ensemble
    Ensemble InterContemporain
    Conductor
    Peter Eötvös
    IRCAM Ades:
Performances
Date
Title
  • 27 MAR 2013
    Rochester, NY
    Eastman School of Music
    Brad Lubman, conductor
  • 13 SEP 2010
    Sacrum Profanum
    Krakow, Poland
    Ensemble InterContemporain
    Jean Deroyer, conductor
  • 17 FEB 2010
    New York, NY
    Julliard School
    Jeffrey Milarsky, conductor
  • 24 NOV 2007
    Festival Why Note
    Grand Theatre de Dijon, Dijon, France
    Ensemble XXI
    Dominique Dournaud, conductor
  • 05 DEC 2006
    Geneva, Switzerland
    Ensemble Contrechamps
    Pascal Rophé, conductor
  • 19 OCT 2006
    Musica Viva Festival 2006
    Belem Arts Centre, Lisbon
    Orchestrutopica
  • 16 DEC 2005
    Centre Pompidou, Paris
    Ensemble InterContemporain
    Daniel Kawka, conductor
  • 24 NOV 2002
    Magma2002Berlin
    Philharmonie, Berlin
    Cikada
    Christian Eggen, conductor
  • 21 AUG 2001
    Schleswig Holstein Festival
    Germany
    Avanti! Chamber Orchestra
    Magnus Lindberg, conductor
  • 12 APR 2001
    Milan, Italy
    Orchestra Guido Cantelli
    Flavio Emilio Scogna, conductor

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