By Alexander Julin Mortensen, photo: Press photo The first time I encountered the Danish sound artist, composer, researcher and visual artist Alexander Tillegreen’s work was at the contemporary gallery O-Overgaden in Copenhagen. His exhibition, entitled “Shift”, showed him working in the intersection of scientifically-inspired sound and visual art, centered around a psychoacoustic phenomenon called phantom word illusion – an auditory and language-based illusion whereby ...