Relativistic physics, of course, conceives of time only in connection with space and movement, and not as existing independently of these, and it is contemporary physics that provides a basis, or indeed creates a necessity, for linking musical time with musical space and, naturally, music in this space-time dimension. The result is a musical space-time structure that varies with the quality of the movement. Formulated in this way, the laws of musical movement spontaneously select only tonally organised tones from all the sound heard. This tonality is unavoidable. Movement followed from different places, i.e. in relation to different tones of musical space, would appear different and common musical thought would not be possible.
Harmonies arise from combinations of minor or major fifth chords.
Since 1964 the composer has written more than forty works in this bi-key. Prague 5, Czech Republic.