Halley's Comet - Matthew Kilby [DIGITAL SET]

Halley's Comet is a work for 4 to 6 percussionists that features revolving textures, repeating patterns, and mysterious, space-inspired harmony evoke the popular comet’s predictable orbit and rare appearance. Scored for glockenspiel, vibraphone, and two players sharing a marimba, plus optional parts for auxiliary percussion and sampled sound effects created from reversed marimba sounds, the work depicts the awe of a celestial event.

Genre: Percussion Ensemble | # of Players: 4-6
Level: Intermediate | Duration: 3:05

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Instrumentation
Score (8.5"x11" stapled booklet)

Required Parts (4)
Glockenspiel
Vibraphone 2 octaves
Marimba 1: 4-octave* (Optional: Triangle, Sampler)
Marimba 2: 5- or 4.3-octave* (Optional: Ankle Bells, Sampler)

Optional Parts (2)
Percussion: Mark Tree, Very Small Triangle, Sizzle Cymbal, Mounted Ankle Bells (played with mallet), Kick Drum, Ride Cymbal, Shaker

Sampler
Optional: Triangle, Shaker

* Marimbas may share one instrument. Only one pitch (D2) falls within the 5-octave range. It may be played up one octave if out-of-range.

Program Notes
,b>Halley’s Comet was composed for the Cario Middle School Percussion Ensemble in Mount Pleasant, South Carolina, for their featured performance at the 2026 South Carolina Music Educators Association Conference. Inspired by the Cario school mascot, the piece tells the story of the most famous periodic comet visible from Earth and explores themes of motion, time, and return.

Revolving textures, repeating patterns, and mysterious, space-inspired harmony evoke the comet’s predictable orbit and rare appearance. Scored for glockenspiel, vibraphone, two players sharing a marimba, auxiliary percussion, and sampled sound effects created from reversed marimba sounds, the work depicts the awe of a celestial event. Performance Notes The piece can be successful in many formats: as a keyboard-only quartet without electronics, as a quartet with electronics, as a quintet with a sampler, or as a sextet with the 6th player playing a sampler and shaker. The piece introduces advanced techniques (aleatory components in the opening) and performing with electronic accompaniment, but with plenty of cushioning. Natural pauses between sections allow young students to recalibrate, and an ABA form allows students to rely on the comfort of repeated material. Students will want to develop comfort with the 3:2 polyrhythm, which drives the piece.