January 27, Gaudeamus Muziekweek NYC, ISSUE Project Room, New York, 19:30
International Contemporary Ensemble (ICE), Structure VII
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March 18, Waterspiegel, Galerie Marzee, Nijmegen, 14:00
Katharina Gross & Arnold Marinissen, Premiere of Horizon (No. 51)
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April 17, Nieuws van het Front, Felix Meritis, Amsterdam, 20:15
Ives Ensemble, Asko Kamerkoor & Van Swieten Society, Structure IX
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May 31, Slam, Pluck & Blow, Smart Project Space, Amsterdam, 20:30
Ensemble Klang, Phrase (No. 48), Fraction (No. 49)
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June 2, Slam, Pluck & Blow, Korzo, Den Haag, 20:30
Ensemble Klang, Phrase (No. 48), Fraction (No. 49)
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June 7, Slam, Pluck & Blow, Huis a/d Werf, Utrecht, 20:30
Ensemble Klang, Phrase (No. 48), Fraction (No. 49)
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July 7, Waterspiegel, Festival Weisse Nächte/Theater-an-der-Ruhr, Mulheim, Ge
Katharina Gross & Arnold Marinissen, Horizon (No. 51)

August 7, Chamberfest Ottawa 2012, National Gallery of Canada, 15:00
Ensemble Continuum, 9-99
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November 11, Double Music, November Music, Verkadefabriek, 11:30
Slagwerk Den Haag, Premiere New Work (together with Maarten Altena)
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November 20, Roulette, New York, 20:00
Flexible Music, Phrase + Fraction
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November 25, Waterspiegel, Stichting Twee plus Drie, Utrecht
Katharina Gross & Arnold Marinissen, Horizon (No. 51)

November 29, Double Music, Muziekgebouw aan ‘t Ij, 20:15
Slagwerk Den Haag, Premiere TWOMB (together with Maarten Altena)
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December 14, Double Music, Vredenburg Leeuwenbergh, 20:00
Slagwerk Den Haag, Premiere TWOMB (together with Maarten Altena)
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December 15, Double Music, Theater Korzo, Den Haag, 20:30
Slagwerk Den Haag, TWOMB (together with Maarten Altena)
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