Complex sentence: Faces Etnofestival is a music festival celebrating multiculturalism, world music and multiplicity held annually in Raseborg, Southern Finland in July-August ever since 1998 by the nonprofit Etnokult Association which was formed for this express purpose in December 1997 by Börje Mattsson and Holger Wickström.
Split into simpler sentences: Faces Etnofestival is a music festival held annually in Raseborg, Southern Finland in July-August that celebrates multiculturalism, world music and multiplicity. It has been arranged ever since 1998 by the nonprofit Etnokult Association which was formed for this express purpose in December 1997 by Börje Mattsson and Holger Wickström.