The two-headed snake on the cover of this album aptly describes the sublimely sinuous and dark interplay between London free jazz drummer Steve Noble and bass clarinetist Yoni Silver, their 4-part improvisation taking on sinister elements of exceptional cymbal techniques, unusual drum tones, and extended lower register tones and high harmonics; excellent.

Two live sets of exemplary improvisation: the first revelatory encounter of pianist Sebastian Lexer and drummer/percussionist Steve Noble from 2011, and a more considered and spacious meeting in 2014, both from London's Cafe OTO.