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Lunar Loops

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Lunar Loops

By Gloria Coates

Level: Intermediate

Item: 98-EP14598

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Description
Inspired by her idiosyncratic compositional style, we asked Gloria Coates in 1988 to write a new work for two guitars. She surprised us with an unusual yet coherent idea. Microintervals as the musical building blocks of a playing canon are at the heart of her guitar composition Lunar Loops. The scordatura (retuning) of the open guitar strings during playing is an original and astonishing idea of the composer. Using the traditional bottleneck technique, the sounds produced by the scordatura are brought to a thrilling climax, which erupts in an aggressive percussion section before the canon reverses. Lunar Loops was premiered at the 1989 Munich Guitar Festival by the guitar duo Ruth Fischer & Stephan Stiens in the Max Joseph Hall in Munich.

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Additional Details
Series: Edition Peters
Publisher: United Kingdom
ISBN10: 0-577-02634-8
ISBN13: 979-0-577-02634-3
UPC: 9790577026343
SKU: 98-EP14598

More about this title

About the Composer: Gloria Coates

Gloria Coates is an American composer known for her experimental approach to orchestration and her fearless exploration of extended techniques across all instruments. Her work often challenges conventional tuning systems and instrumental capabilities, pushing performers toward new sonic territories while maintaining rigorous compositional logic.

Why we love this

Lunar Loops demands that guitarists think beyond standard repertoire. The scordatura retuning during performance and microinterval construction create a piece that stretches technical and musical understanding in ways that typical intermediate guitar music simply does not. Your ensemble will remember this work.

What to expect

Lunar Loops unfolds like a gradual distortion of familiar guitar sound into something otherworldly. The microinterval canon creates a shimmering, almost hypnotic texture that fragments and reforms, building tension until the bottleneck technique and percussion shatter the delicate balance in a moment of raw intensity.

Who it's for

Intermediate guitar ensembles seeking repertoire that expands both technique and musical thinking. This work suits guitarists comfortable with unconventional extended techniques and willing to embrace compositional innovation as a learning opportunity.

How to get the most out of it

  • Master the scordatura retuning sequence in isolation before attempting it within the playing canon. Work slowly and deliberately until the transition becomes second nature.
  • Attend carefully to the microinterval relationships between the two guitar parts. These small pitch distances require precise intonation and listening; your usual tuning reference may not capture them accurately.
  • Approach the bottleneck passages as a textural shift rather than a technical hurdle. The timbre change should feel organic to the canon's trajectory.
  • The percussion eruption benefits from clear articulation and rhythmic precision. This moment contrasts sharply with what precedes it, so rehearse the dynamic and textural transition explicitly.

How to use it

Position this as a concert centerpiece that demonstrates your ensemble's technical sophistication and adventurous programming. It pairs well with more traditional classical guitar repertoire on the same program, offering audiences a striking contrast in compositional approach and sound world.

Skills your students will build

  • Scordatura retuning during performance
  • Microinterval intonation and hearing
  • Playing canon technique with independent voicing
  • Bottleneck slide technique and tonal control
  • Extended technique coordination in a two-part texture
  • Rhythmic synchronization across textural transitions

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