"...a canvas filled with various shades and tones which, taken all in all, cohere courtesy of Kaufmann's intensely personal, almost esoteric approach."
Chris Parker, Jazz Review
"On 'knives' … the 2001 winner of the SWR jazz award leaves nothing unturned when looking to create new sonic facets: by reaching into the piano's interior, by employing percussive effects, by 'bowing' but certainly also by displaying a stupendous facility on the keyboard."
Reinhard Kager, SWR radio (Germany)