2008
| Lotos (dedicated to Julius) KlangZeitFestival 2008 / 'time is on my side' 
sound-installation in the Dominican church, Münster February 2nd to 17th 
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| die anderen / tønder version sound-installation in the Sønderjyllands Kunstmuseum, Tønder / Denmark December 4th 2007 to March 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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| dort drüben concept for a sound-installation at the Small Cistern on the Ohlsdorf cemetry in Hamburg this project is not to be continued |
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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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| die lichtung Center for International Light Art, Unna
Concept for a light-installation at the entrance of the center, meant to unify the partners of the project 'Hellweg - ein Lichtweg'
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| Seestück Draft of a monument for the river Elbe in front of the Kaiserhöft in Hamburg Work in progress |
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