Jozef Malovec: Orthogenesis (1966/1967)

Jozef Malovec (1933-1998): Orthogenesis (1966-1967). Realized in the Experimental Studio of the Czechoslovak Radio, Bratislava. In the composition only electronic sound sources are used. Resulting sounds were modified and filtered before as well as after the detailed decoupage, small sound structures being prepared from a random selection of high frequencies. With an “infinite“ tape they were reproduced by an effect tape recorder with four magnetic heads, where the audio signal of every head was modified by a special adjustment of band pass filters or by various types of feedback. This elementary microstructural material underwent a further transformation through various degrees of reverberation, or by a continually changing reverberation. The composition has no definitive score; there exist only sketches of some of its parts, serving as an orientation at the process of montage and mixing. There exists also some schematic figures of the connecting of instruments for the producing of some of the microstruct