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Dark Radiance

by Emma-Ruth Richards

Instrumentation
Cello
Composed
2016
Duration
6'
Publisher
Composers Edition
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About this piece

Dark Radiance is a six-minute piece for unaccompanied cello, written in 2016 on a London Sinfonietta commission and premiered by the ensemble's principal cellist Tim Gill at the Southbank Centre, London, on 31 May 2017. In her program note Richards explains that she took the trumpet's traditional association with light and transferred it to the cello, moving between muted, almost intangible passages and piercing 'shards' at the top of the range. The score controls bow pressure with a three-line staff beneath the music, from a light skating sound in which pitch almost disappears to heavy pressure, and asks for rubato throughout. Ovidiu Marinescu gave the US premiere at Carnegie Hall and recorded it on the Navona album Moto Quarto.

Technical overview

No technical overview is available yet.

Level rubric

Professional

Left Hand

  • Complete command of the fingerboard.
  • Proficient thumb position across all strings.
  • Execute complex double stops and rapid trills precisely.
  • Fast scales and leaps with precise intonation and speed.
  • Apply expressive techniques (portamenti, micro‑adjusted intonation) tastefully.
  • Easily execute false harmonics.

Right Hand

  • Seamlessly blends martelé, spiccato, sautillé, legato & ricochet.
  • Meticulous bow distribution for sustained lines or rapid passages.
  • Clear pianissimo to controlled fortissimo.
  • Economical, efficient bow movement with smooth transitions.
  • Employ advanced effects (ponticello, bow effects) artistically.

Musicality

  • Focus on a deeply personal, communicative performance.
  • Make interpretive choices reflecting deep understanding of form, style & emotion.
  • Convey nuanced phrasing, wide dynamic range & a unique artistic voice.
  • Craft dramatic cadenzas/solos with rubato, tone & expressive timing.

Levels are approximate guides, not strict requirements.