Playful Technology-Mediated Audience Participation in a Live Music Event. - Fares Kayali; Oliver Hödl; Geraldine Fitzpatrick; Peter Purgathofer; Alexander Filipp; Ruth Mateus-Berr; Ulrich Kühn; Thomas Wagensommerer; Johannes Kretz; Susanne Kirchmayr (CHI PLAY (Companion), 2017)