Kruger's music can manifest itself as compositions with an enormous variety of structures and instrumental combinations, as multisensory mixtures of sound, image, and movement, or as pure electronics, or... - an aesthetic range reflected, at least partially, in the program of this album. But in spite of this heterogeneity that defies conventional categorization, there are certain significant constants in Kruger's works. One of these is the physicality of their linguistic forms and a correspondingly close connection to the interpretive powers of their performers. He investigates and redefines sounds, exploring physiognomies and contexts that were not yet in his repertoire. The early organ piece "conTemp[s]lations" might seem to be out of place, but it's expansive microtonality and unconventional coloration foreshadow Kruger's later electronic works such as "rosebud". Everything in this contemplative sound continuum is geared toward flowing transformations of sound qualities and the relationships of timbral mixtures. The instrumental monologues and dialogues of "fuckin' A!", "renk", and "nun schauervoll einmalig blickt es mich an" are characterized by a high degree of density and kinetic energy. "rosebud", for dancer, motion sensors, and live electronics was created at the renowned IRCAM center in Paris in collaboration with dancer Victor Virnot, whose choreography is closely linked to the live electronic processes. During the development of the piece, each of the two levels was influenced, and even determined, by the other, until "rosebud" finally achieved it's final, definitive form. The dancer embodies, so to speak, an "extended" musician - a hybrid of man and machine.