Funky Dutch artists/composers Rob Van Rijswick (L) and Jeroen Strijbos (R) at Glasgow Centre for Contemporary Arts (CCA), Glasgow, Scotland, with their installation Rocking Chairs 2015, where physical movement diffuses and modifies sound emanating from specially developed sensorpack and loudspeaker technology. Swaying back and forth produces an interactive, personalized performance where the compositions heard are directly shaped by the sitters individual movements. Rocking Chairs is on show as part of the Sonica 2015, which brings artworks which involve sound and music.