Eight sophisticated chamber pieces composed by Linda Catlin Smith and realized by the Canadian Apartment House ensemble, including a solo piano performed by Philip Thomas, a piano duo with Thomas and Mark Knoop, and works for percussion & cello, 2 quintet pieces for strings, percussion and winds, and two 7-piece conducted works with two percussionists, strings and brass.

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.

Morton Feldman's final composition, originally premiered in 1987, here performed by pianist Mark Knoop, violinist Aisha Orazbayeva, violist Bridget Carey, and cellist Anton Lukoszevieze, recording a year after their successful performance at London's Cafe Oto, maintaining focus and concentration on this large, unhurried work of micro-variations.

Bryn Harrison's highly acclaimed, labyrinthine composition for violin & piano from 2014, expertly realised by violinist Aisha Orazbayeva and pianist Mark Knoop, for whom this 5-part work of beautiful repetitions reflecting tapestries of sound was written.

"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'.

Stockhausen's late 60s composition "Mantra" was a return to his intricately systematised approach to musical construction, expanding the possibilities and potentialities of the serial principle to allow for more melodic and embraceable compositions.