The problem of the double has explicitly haunted music since John Cage declared music to be part of theatre. In Immaculate Conception , No Collective explored this doubling by creating a doppelgänger ensemble that acted as a copy of the musicians of the group ensemble mise-en. This tactic foregrounded the theatrical dimensions of music, while the context surrounding the performance itself highlighted the problematic entanglement of original and double (between “experimental” and “contemporary”) in the social sphere of new music.