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Cavitation

for baroque ensemble (two baroque violins, baroque viola, viola da gamba and harpsichord)

9,50 €
Printed format (+14,80 € printing and shipping). Colissimo5-11 days aprox.
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Specifications
Region
Europe
Estimated Duration
6 - 10min
Date
2017

ISMN : 979-0-2325-3969-0

Notes on this piece
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Cavitation is: “formation of vapour bubbles within a liquid at low-pressure regions that occur in places where the liquid has been accelerated to high velocities, as in the operation of centrifugal pumps, water turbines, and marine propellers. Cavitation is undesirable because it produces extensive erosion of the rotating blades, additional noise from the resultant knocking and vibrations, and a significant reduction of efficiency because it distorts the flow pattern. The cavities form when the pressure of the liquid has been reduced to its vapour pressure; they expand as the pressure is further reduced along with the flow and suddenly collapse when they reach regions of higher pressure. The sudden growth and collapse of these vapour cavities cause the extreme pressures that pit the metal surfaces exposed to the cavitating liquid.” (Definition from Encyclopedia Britannica)

The piece was written for Belgrade Baroque ensemble with the intention to have copies of historical instruments interpret conceptual contemporary music with limited employment of extended techniques, and at the same time cautious of sensitive built that is typical for baroque instruments.

In order to describe cavitation in sound pictures, the ensemble gets united in several sound masses of different textures. Sections present still water, working engine, turbine rotation, formation of bubbles, episode focus to an inside of a single bubble, the air inside and the membrane around it, implosion of the bubble under the strong pressure of water, returning back to the sounds of working engine and rotating turbine, as well as their final stopping due to damage caused by cavitation.
Instrumentation
Harpsichord
Violin (2)
Viola
Viola da gamba
Recording
The piece was commissioned and performed and recorded by BELGRADE BAROQUE ensemble https-//www.facebook.com/belgrade.baroque/

Recording and editing by Maja Bosnić
Mastering and final mix by Žarko Kovačević
Score Details
Format - A4 / US Letter
Pages - 50


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