The performance group Magdalena Inc.+ was founded in 1998 by four artists from different genres:

Walli Höfinger - movement
Christopher Dell - sound
Ruth Hommelsheim - image
Christiane Hommelsheim - voice
2001 At the Edge of time
2002 Slow Space
2003 The Third Body
Magdalena Inc.+ goes politic
by Christopher Dell
  deutsche version