The two pieces on "kristall" seem to be based mainly on feedback- and metal or glass sounds that are carefully put together for a queer-sounding trip. Side A ("Listen to the music playing in your head") consists of humming, growling drones, low siren-like sounds and high-frequency feedbacks, powerful and absorbing and very abstract, while never turning into sheer noise. Side B (with the odd title "Heute war ich bei den weißen Elefantens") delivers a crystal-clear noise chant and metallic overtones processed with obscure effects.