UPC: 781484703518 Bitterviper is an all-new configuration of individuals and intent. Nikos Veliotis (cello), Taku Unami (synthesizer), Sarah Hennies (percussion) and David Grubbs (piano, guitars) have all participated - solo and as collaborators - in some of the most striking avant music-making of the past couple of decades. Their quartet's collective minimalist interplay passes through dense harmonic fields, transcendentally ionized ambient moods and soundtracks.