music of the sea ...
... at the sea organ in Zadar
The Sea Organ (morske orgulje) is is a natural musical instrument, seventy meters long with thirty-five organ pipes built under the concrete. The musical pipes are located so that the sea water and wind movements produce musical sounds that are heard by passers by so that it achieves a communication with nature and promotes a unity of architecture and environment. As sea forces and energies are unpredictable in terms of tides and winds, this organ offers never-ending concert of numerous musical variations in which the performer is nature itself.
Each musical organ pipe is blown by a column of air, pushed in turn by a column of wave-moved water, through a plastic tube immersed into the water. The pipes' musically tuned sounds emanate to the surroundings through apertures in the vertical planes of the uppermost stairs. The 7 successive groups of musical tubes are alternately tuned to two musically cognate chords of the diatonic major scale. The outcome of played tones and/or chords is a function of random time and space distribution of the wave energy to particular organ pipes.