John Cage's 1957 composition in a visceral realisation for four pianos, played by John Tilbury, Philip Thomas, Mark Knoop and Catherine Laws, using chance procedures to assign each of the pianist's five of the twenty pages of the score, the pianists agreeing on an overall duration of 40 minutes and preparing their parts independently, performed without rehearsal.

Ten pieces dating from 1995 to 2015 from Canadian composer Linda Catlin Smith, performed by Quatuor Bozzini and Apartment House, the first in Another Timbre's Canadian Composer series, a 2-CD release focusing on Smith's "equal and simultaneous drive toward abstraction and lyricism" in slowly developing, lush and sophisticated compositions.

Five new or recent pieces from composer Jurg Frey, alongside his 1993 work "In Memoriam Cornelius Cardew", all performed by pianist Philip Thomas, presenting slowly unfolding compositions emphasizing the physical space and time within which sounds are situated.

The Ensemble Grizzana (Ryoko Akama, Mira Benjamin, Richard Craig, Emma Richards, Philip Thomas and Seth Woods) performs a series of delicate and beautiful chamber pieces by Swiss composer and clarinetist Jurg Frey, who also performs on clarinet.

"Two Pianos" is one of Morton Feldman's most experimental and radical works, performed here by John Tilbury & Philip Thomas; plus lesser known works including 'Piece for Four Pianos', 'Between Categories', 'False Relationships and the Extended Ending' and 'Two Pieces for Three Pianos'.

Four large and distinctive works by composer Christopher Fox performed by pianist Philip Thomas, who also writes the liner notes about the works, revealing and explaining the compositional elements, piano preparations, and physical requirements placed on the performer.