2009
| par terre sound-installation in the context of BuGa 2009 in the garden of the 21st century 
23rd of April until 11th of October 2009 |
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| peep sound-installation in the context of klangstaetten I stadtklaenge 2009  in Brunswik9th of May to 28th of June 2009 |
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| Grundton Steertlochsiel on the North Sea near Meldorf in the framework of the Kunst+Landschaft 06 exhibition since November 2008 maintained by Freundeskreis Grundton
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| RAUM concept for a sound-installation in the watertower Planetarium, Hamburg Download: Heiko Hentschel wege zum inneren kosmos (.pdf)
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| glyptothek Carlsberg Glyptothek, Kopenhagen postponed until further notice |
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