Permanent Music is a series of modular pieces that can be combined with each other to any setups divisable by two, and performed at any time length. Players choose and arrange their material freely from the given reservoir and proceed at their own pace. The form is created in real time, by following the given connection rules. In the original draft I reduced the five-line staff to two lines, whose distance is a tritone, so, due to the perfect symmetry of the notation system, I could easily form mirror shapes. Transfering the parts to a regular staff, I could transpose them to any pitch level and layer them at any regular intervals, always dividing the octave by the number of instruments involved. With this arrangement for two keyboards, parts A and B contain the same material, but are shifted by a minor third. The piano is arranged around the interval F/B, the vibraphone around D/G#. I developed the motifs by improvising on the piano, whereby I especially enjoyed creating chromatic clouds by circling the central notes with the sustain pedal held down. By distributing the individual notes to different registers, the cluster structure can be loosened up, to create the notion of an illusory modality; i.e. a modality without a fundamental. When the two instruments play together, a chromatic maelstrom emerges, whose wave structure can be shaded by grading the tempo and dynamic ratios.