Established in 1997, LIGNA is a group comprising the media theorists, radio, theatre and performance artists Ole Frahm, Michael Hueners and Torsten Michaelsen. In shows, performative interventions and installations, they explore the potential for action on the part of collectives that form diffuse and temporary associations. The preferred venue for their interventions is the increasingly controlled public domain, for which they devised the radio ballet genre: a choreography of forbidden and excluded gestures is broadcast on the radio; the listeners bring them back en masse and in uncontrollable fashion. Wählt die Signale - Ein Radiokonzert für 144 Mobiltelefone (i.e. Dial the Signals – A Radio Concert for 144 Mobile Phones), on the other hand, engages the radio listeners in a collective twelve-hour music composition, while a play entitled Der Neue Mensch (i.e. The New Man) exhorts the audience to take over the stage in a complex gestural interaction and to question the theatre as a place of representation.