It seems impossible at first to review multiple nights of the London Contemporary Music Festival all at once – over the course of a week the cavernous Ambika P3 gallery hosted a sensory overload of music that, while not always new, was certainly contemporary in the atypical thematic presentations, bringing together provocative works in provocative ways. Running from 11 to 17 December, the three middle nights of LCMF all dealt with the monumental: large, long works that opened up audience perceptions by virtue of extended contemplation. The concerts on Sunday and Tuesday lasted over three hours; they weren't easy, but they prompted salient experiences.