The PDF doesn't list any percussionists in the list of instrument sections, but since percussionists are an optional product add-on via the website I wonder if they'll just include them as needed based on the needs of the finalist's piece. It just seems a little limiting not to utilize percussion in a action comedy piece like this. Anyone know for sure?
From competition brief:
STRINGS - 5 x 1st Violin, 5 x 2nd Violin, 4 x Viola, 4 x Cello, 2 x Bass
WOODWIND - 1 x Flute, 1 x Oboe, 1 x Clarinet, 1 x Bassoon
BRASS - 2 x French Horn, 2 x Trumpet, 2 x Trombone (tenor & bass)
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From the Q&A video:
2 percussionists will be made available with: timpani, snare drum, bass drum, suspended cymbal, crash cymbal, triangle, tam-tam, tambourine, woodblock, glockenspiel, xylophone, vibraphone, marimba, mark tree.
The score can include non-orchestral stems.
Percussion instruments with high mic bleed (snare, crash cymbal, etc.) will be better served by providing stems, given the tight recording schedule. The decision has to be taken case-by-case after the production scores are selected.
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I highly recommend the Q & A video - it's wonderful advice for creating music that's intended for live recording. If there isn't time to listen right away, the competition details can be found in the comments, and the TLDR is "write your best score." The sponsors will make it work, just try to nail the brief.