Fourth soundtrack from the series of Captain Entprima's meditation music, which uses highly effective overtone structures and psychoacoustic effects to create relaxation and stimulation within a few minutes. This meditation unit is based on the keynote A. This time a melodic instrument runs throughout the piece. As can be seen from the transient response of the tones, it is an electronic wind instrument. The sound has quite a few effects that evolve over time, but the phases are constantly shifting. A very impressive performance.