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.

Six musicians from the UK Fluxus group Apartment House, including Philip Thomas (piano), Bridget Carey (voila), Anton Lukoszevieze, Simon Limbrick (percussion), present several realizations of composer Joseph Kurdirka's pieces, including text scores and fully-notated works.

Leading contemporary music ensemble Apartment House perform a new piece developing out of James Saunders's long-term modular project '#unassigned'; the new piece, "assigned #15" creates a mesmeric, dense, jungle-like soundworld across its 45 minutes duration.