Three minimal works for small ensemble incorporating electronics by Australian-born, UK-resident composer Newton Armstrong: 2 performed by the London-based Plus-Minus Ensemble directed by Mark Knoop as an acoustic quartet configuration and one as an electroacoustic quartet; and a solo work for multiple cello layers and resonance performed by Séverine Ballon.

The 4th album on Another Timbre from a series of pieces by composer Antoine Beuger, each acknowledging a cultural or intellectual figure, here titled for philosopher, musicologist, educator and one-time member of the French Resistance, Vladimir Jankélévitch, represented by Beuger in a large dramatic work performed by the Apartment House sextet.

A 4-disc box-set with a 44-page booklet of extensive notes, presenting John Cage's Number Pieces which he wrote in the last five years of his life, adapted for mid-size ensembles and performed by the London-based ensemble Apartment House, compositions 'Five' to 'Fourteen' along with alternative versions of three of the pieces; significant and essential.

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.

Another Timbre's second CD of chamber works by the Paris-based Italian composer Giuliano d'Angiolini: Four pieces - ensemble works performed by Apartment House and the Orchestra del Teatro Comunale di Bologna, a duo for flute and piano, and a piece for solo piano played by the composer, all performed at the 2018 Angelica festival in Bologna Italy.

Commissioned by Another Timbre for the quarantine commissions series, Hlaholika was developed by composer Adrián Demoč for the Apartment House ensemble as a quintet of violin, double bass, clarinet, viola & piano, using the configurations for 3 other works performed here by Apartment House; plus a piece for an ensemble from the Janacek School of Music in the Czech Republic.

A live recording of Julius Eastman's 1974 work "Femenine" performed by Apartment House led by cellist Anton Lukoszevieze, with Simon Limbrick on vibraphone, Kerry Yong on piano, Mark Knoop on keyboard, Mira Benjamin on violin, and Gavin Morrison and Emma Williams on flute, an ecstatic and intricate work using a repeating figure contrasted with both asynchronous and complementing backgrounds.

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.

"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'.

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.

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.

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.

Five fascinating works by the Belgian composer Maya Verlaak, realized by Apartment House and soloists Sarah Saviet & Mark Knoop, experimental compositions including a work of personal reflection based on "Alouette"; a conceptual game piece; a composition layering pre-recorded segments of "Greensleaves"; and two interactive acoustic & computer pieces.