John Cage wrote his "Number Pieces" in the last years of his life, using his time bracket technique of short fragments allowing the performer flexibility in interpretation; each piece is titled for the number of performers and its ordinal position in the series, and most pieces are dedicated to a musician; here pianist Guy Vandromme performs three of the "One", or solo, series.

Burkhard Schlothauer presents two works by John Cage written for septet, using indeterminacy in a score where each instrumental part is given twenty time brackets, allowing overlapping sounds which will be shaped depending on choices from each performer.