„Bernt is burned with groove and color.
What a joy to hear this freedom. I must respect him as a player. Very tight and musical…“ (John Sussewell, drummer, worked with Stevie Wonder, Deodato, Freddie Hubbard, Alvin Lee, Diana Ross)
„Küpper spielt virtuos E-Gitarre“ Patterns And Tensions „ist eine bemerkenswerte Platte“ (Gitarre&Bass, Jan. 2007)
„tunesmithing and chops tight … very interesting“ (John W. Patterson, WEER Jazzrock Radio, NC, U.S.A.)
„His compositions are great and the music is played excellent…“ (Alphonse Mouzon, drummer, founder member of Weather Report, worked with Herbie Hancock, Miles Davis, Klaus Doldinger, Larry Coryell, Al Di Meola)