Jil Sander | August Sander | Sander Kleinenberg | Sander Griffioen | Sander Cohen | Mart Sander | Helge Sander | Ian Sander | Casey Sander |
The musical backing and the songwriting for the debut album were supplied by musicians Mat Sinner (Primal Fear, Sinner), Magnus Karlsson (Primal Fear), Sander Gommans (After Forever), Jimmy Kresic (Voodoo Circle) and Martin Schmidt.
Sander Gommans started the composition of the basic melodies for Invisible Circles at the beginning of 2003 in his home studio in Reuver, working at the same time on new songs for the EP Exordium.