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Unlocked

by Judith Weir

Instrumentation
Cello
Composed
1999
Duration
15'
Publisher
Chester Music

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About this piece

Five freely composed cello 'fantasias' (1999), each inspired by an American folksong from the Library of Congress recordings John and Alan Lomax made in the 1930s, many of them from Black prisoners in Southern jails. The movements range from a whispered holler and an angry protest song to a Bahamian dream of a better life, a Cajun girl's fantasy of escape and an Alabama blues. Written for Ulrich Heinen, who gave the first performance in Birmingham in May 1999.

Technical overview

Wide range of extended techniques: left-hand finger resonance and percussive slaps, scratch tone, legato with the wood of the bow, stamping and using the body of the cello as a drum (No. 2); mute throughout No. 3; a very fast, agile No. 4 ending in artificial harmonics; tremolo over the fingerboard alternating with a simply treated blues melody in No. 5.

Technical focus

  • Harmonics

Level rubric

Advanced

Left Hand

  • Unrestricted fingerboard operation.
  • Effortless high‑register passages with thumb position.
  • Execute large leaps, rapid shifts & fast runs with precise intonation.
  • Render double stops with clarity and even vibrato.
  • Crisp, stylistically appropriate ornamentation (trills, turns, mordents).
  • Instinctive micro‑adjustments in intonation for expressiveness.
  • False harmonics in low positions

Right Hand

  • Complete command of all bow strokes at any tempo/dynamic.
  • Comfortable execution of virtuoso passages (sautillé, intricate ricochet).
  • Tone projection from whisper‑quiet to fortissimo.
  • Integrate advanced bow patterns with expressive phrasing.
  • Demonstrate technical precision with a broad dynamic range.

Rhythm & Musicality

  • Interpret large‑scale structures with nuanced pacing and rhythmic freedom.
  • Highly refined phrasing with subtle note grouping & expressive rubato.
  • Convey emotional depth and stylistic authenticity.
  • Incorporate personal interpretive choices while meeting stylistic demands.

Levels are approximate guides, not strict requirements.