things lost invisible

Arturo Tamayo
conducting things lost invisible
XXI International Expocentre
Warsaw, Poland

for ambisonic space and orchestra

2007

Work commissioned by the 50th International Festival of Contemporary Music Warsaw Autumn.

Work recommended by the UNESCO International Rostrum of Composers (Paris, June 2009).

Soloists (the Cistern, Fort Worden):

Josiah Boothby, horn

Toby Penk - trumpet

Colby Wiley- trombone

Premiere: September 22, 2007, XXI International Expocentre, Warsaw, Poland

Conductors: Arturo Tamayo, Szymon Bywalec

K.Szymanowski Academic Symphony Orchestra, Katowice, Poland

More information and downloads:

http://ewatrebacz.com/scripts/art.php?project_id=1

things lost invisible is a hybrid work combining features of a large orchestral form with a spatial sound installation, exploring periphony. It involves a symphony orchestra divided into groups and a 3-dimentional speaker system (audio decoded to 2 layers of 6 speakers, originally realized in ambisonics).

The work is a large-scale acoustic experiment, where the entire sound environment is being treated as a body of a one complex instrument (the audience is located inside the resonance box of that instrument).

The initial sound material was recorded during an on-site session in one of the most unique underground spaces: the the Dan Harpole Cistern, Fort Worden, WA. This legendary space is located underground, on a former military base. It is characterized by a 45-second reverberation time and bizarre sound trajectories.

All the initial recordings have been realized with a Soundfield ST-250 ambisonic microphone. The special stress during this recording was placed on the elevation factor: a vertical movement of sound (in this case absolutely crucial, due to the acoustic features of that space).

Orchestral parts and the final shape of the entire work have been derived from those recordings, so the spatial features of the Cistern became the major formative principle.

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