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Blueshift Red






SKU: 10A2100FC534


Blueshift Red for Flute Choir by Jonathan Cohen

Instrumentation: piccolo, 4 C flutes, alto flute, bass flute, contrabass flute (or contralto flute in G or string bass)

Score and parts

Duration: 2:00

Blueshift Red” was commissioned by the West Michigan Flute Orchestra, Julie Sooy, director. From the composer: “We have all experienced a noisy vehicle going by rapidly and hearing a raised pitch as the vehicle approaches and a lowered pitch as it recedes. This Doppler shift manifests itself in light, as well: light from stars approaching us has its frequency raised, shifting it to the blue end of the spectrum; light from receding stars is shifted to the red. The title, then, refers to something passing quickly.”

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