Following a residency at the Technische Universität (TU) in Berlin (Germany) from March 11 to 21, 2007 where he is finishing a new composition, Christian Calon will premiere the third region of Atlas (Est) as part of the 5th International Linux Audio Conference (LAC2007) on March 22 — 25, 2007 in Berlin. For this occasion, the multitrack work has been produced for a spatialisation on very wide WFS (Wave Field Synthesis) surround system on 840 tracks and about 3,000 loudspeakers. Furthermore, Nord (the first region of Atlas) by the same composer and Rituale by Hans Tutschku will be presented in concert respectively on March 23 and March 24, again as part of the concerts organized by Tesla and the Deutsche Akademische Austausch Dienst (DAAD) for LAC2007.