Janet Cardiff. Forty Part Motet, 2001.
“While listening to a concert you are normally seated in front of the choir, in traditional audience position. With this piece I want the audience to be able to experience a piece of music from the viewpoint of the singers. Every performer hears a unique mix of the piece of music. Enabling the audience to move throughout the space allows them to be intimately connected with the voices. It also reveals the piece of music as a changing construct. As well, I am interested in how sound may physically construct a space in a sculptural way and how a viewer may choose a path through this physical yet virtual space.”
More here, here, and currently at the Clark Museum.