In his sound installation Days (2009) Nauman tips the familiar time structure of the seven-day week out of kilter. From fourteen flat loudspeakers aligned in pairs—more membrane than volume—seven female and male voices recite the days of the week in varying order, at varying speeds and in varying cadences. The voices emanating from the directional speakers, suspended at head height, form a passageway that temporarily doubles the underground-connecting tract between the Kunstmuseum Hauptbau and Neubau in the form of an acoustic corridor. The time structure of the week seems to disintegrate almost playfully. What if Sunday did come after Monday? What if the week had eight days instead of seven? Ultimately, in the midst of this constant stream of voices, we find ourselves questioning our own perception of the relativity of time that we so casually take for granted in all its profundity and banality. Nauman created Days for the 53rd Venice Biennale in 2009.