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Ripples

by Karen Sunabacka

Instrumentation
Viola, Cello
Composed
2019
Duration
8'
Publisher
Canadian Music Centre (unpublished, printed by CMC)
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About this piece

Ripples is a duet for viola and cello that Karen Sunabacka wrote in 2019 for Ames Asbell (viola) and Karla Hamelin (cello) of Texas State University, with funding from Texas State and Conrad Grebel University College. Asbell and Hamelin premiered it on 28 October 2019 at the Texas State University Performing Arts Center in San Marcos. In her programme note Sunabacka calls the piece 'a celebration of women' that 'explores our connections and the beautiful and life-giving waterways around which we live and thrive'. The two instruments trade sustained melodies over rippling arpeggios and pizzicato patterns, so the cellist plays accompaniment as well as melody.

Technical overview

A single movement of about 8 minutes, opening at minim = 50 in 3/2 and later moving to 2/2 and 4/4 at a faster crotchet = 100. The cello alternates pizzicato and arco, plays sustained tenor-clef melodies in the middle positions, and drives a long central section of slurred sixteenth-note arpeggios across all four strings that end in natural harmonics. There are also glissandi, triplet figures shared with the viola, and soft hairpin dynamics from pp to f.

Technical focus

  • Harmonics
  • String Crossings
  • Shifting
  • Legato
  • Pizzicato
  • Meter Changes
  • Hairpin Dynamics
  • Dynamics
  • Ensemble Skills

Level rubric

Early Advanced

Left Hand

  • Fully integrated thumb position; scales/arpeggios on A & D strings.
  • Smooth shifts into/out of thumb position for sustained high notes.
  • Frequent advanced double stops with rapid, coordinated shifts.
  • Accurate ornamentation (trills, turns, grace notes), even in double stops.
  • Expressively adjust intonation for chord balance.
  • Handle fast runs and large leaps precisely.
  • Introduction to false harmonics.

Right Hand

  • Virtuoso bow strokes: controlled up/down‑bow staccato, deliberate ricochet & well‑shaped sautillé.
  • Wide tone palette via precise bow adjustments.
  • Explore advanced effects (col legno, sul ponticello) as needed.
  • Capable of both powerful fortissimo and delicate soft notes.
  • Rapid switching among strokes in cadenzas/virtuosic passages.

Rhythm & Musicality

  • Apply rhythmic freedom & rubato to shape movements and cadenzas.
  • Personal interpretation with nuanced phrasing & subtle dynamics.
  • Mature tone and phrasing for solo and ensemble settings.
  • Demonstrate advanced ensemble leadership with visual cues.

Levels are approximate guides, not strict requirements.