
Annea Lockwood / Claire Chase /
The Elwha River

Elwha! for seven flutes and seven-channel environmental sound
Density 2036: part xii (2025)
The 12th year of the Density 2036 project will feature the world premiere of Elwha!, a new 40-minute electroacoustic work by the legendary composer Annea Lockwood (b. 1939, New Zealand) created in collaboration with Claire Chase. The work is scored for seven flutes, all played by Chase, and multichannel environmental surround sound made from Lockwood’s field recordings of the Elwha River.
The Elwha, a spectacularly beautiful 45-mile river on the Olympic Peninsula in the state of Washington, runs through the ancestral and spiritual home of the Lower Elwha Klallam people. It is one of several rivers in the Pacific Northwest that hosts all five species of native Pacific salmon and four anadromous trout species. From 1911 to 2014, dams blocked fish passage on the Lower Elwha and decimated the river’s thriving ecosystem, unlawfully driving the tribe off their own land. Local and international advocacy in support of the river and the Klallam people resulted in one of the largest dam removal projects in National Parks history beginning in 2011. After the complete removal of the dams in 2014, the Elwha has come back to life. Revegetation efforts have flourished, and the fish population has returned in record numbers, making the Elwha a model for ecosystem restoration projects—and for resilience, renewal, and rewilding—throughout the world.
Drawing inspiration from movements advocating for personhood and legal rights of rivers, Lockwood and Chase approach the Elwha as an equal creative collaborator in the composition of the work. Bamboo water flutes, glissando flutes, piccolos, alto flutes, bass flutes, C flutes, and contrabass flutes merge with an immersive seven-channel mix of the river’s sounds diffused throughout the performance space. Chase’s seven flutes respond to the multilayered and kaleidoscopic pitch, rhythmic, melodic, and harmonic material of the Elwha and its many living inhabitants, alternately conversing with, rising above, and being submerged by the wild musics of this iconic, liberated river.
Elwha! is the 12th cycle of Density 2036, Claire Chase’s 24-year project to develop a new flute repertory leading up to the centennial of Edgard Varèse’s iconic flute solo “Density 21.5” in 2036. The Kitchen has been the presenter of all twelve Density projects to date.
Excerpts from the World Premiere of Elwha! at The Kitchen, December 2025
Annea Lockwood, Claire Chase, and the Elwha River’s Elwha!
Written by Ihlara McIndoe on the occasion of the World Premiere of Elwha!
Annea Lockwood is fascinated by how a single sound event can be a tiny composition in itself, filled with intricate interior details, and encompassing its own unique structure. An invitation for intensive listening has long been a feature of Lockwood’s creative practice. She is fascinated when a sound shifts out of her control. Rivers, in particular, carry a multitude of gloriously complex and unpredictable sonic potentialities and have their own special sense of agency.
Lockwood has been listening with rivers for decades. Her work with rivers spans countries and includes sound maps of the Hudson (1982), the Danube (2005), and the Housatonic (2010) rivers, as well as recent collaborations on the Schuylkill River with Liz Phillips (2022), and the Columbia River with Nate Wooley (ongoing). Her distinction of listening “with,” rather than “to,” is significant – she sees herself as just one of many organisms that are listening together, within the river environment. For Lockwood, listening offers a special channel of connection, a flow of energy from one phenomenon to another. It’s an ecological perspective that resonates with Claire Chase’s dedication to creating new ecosystems for the music of our time: a flow of vitalizing energy, vibrancy, expansion, creativity, sustenance, and renewal. As collaborators, Annea Lockwood and Claire Chase are acutely attuned to the intimate details of sound and the effect of sound on the human body.
Listening and Making with the Elwha
There is a third key collaborator within Elwha!: the Elwha River itself. Chase and Lockwood approach the Elwha as an equal partner, in the spirit of movements advocating for the personhood and legal rights of rivers, such as in Aotearoa New Zealand, where Lockwood grew up, which in 2017 was the first jurisdiction in the world to grant legal personhood to a river.
The Elwha runs for 45 miles through the ancestral and spiritual home of the Lower Elwha Klallam people, in Washington State. From 1911 to 2014, the river was blocked by two dams which decimated its ecosystem and unlawfully drove the indigenous people of the area from their ancestral lands. In 2014, following a tremendous local and international advocacy effort, one of the largest dam removal projects in National Park Service History was completed, allowing the Elwha to run freely once more through the Olympic Peninsula. Today, the Elwha’s rapid ecological regeneration is, in the words of Lockwood, “a deeply encouraging affirmation of resilience.”
Words alone cannot describe a river
Elwha! is the first of Lockwood’s river works to integrate a human performer right from the inception of the project. Chase and Lockwood prioritized spending time together with the Elwha, taking several trips to explore its sounds, make recordings and discover the ways in which Chase’s ‘voice’ – her flutes – could interweave with the ‘voice’ of the river. In response to these explorations, Chase incorporates an array of live and pre-recorded flutes in the work. Bamboo water flutes, glissando flutes, piccolos, bass flutes, C flutes, and contrabass flutes converge with the river’s multifaceted sound, diffused throughout the performance space through a seven-channel mix.
The work opens above the surface of the water, with the wild call of an elk and an uncanny response from Chase, who explores the whinnying potentials of a bamboo water flute. A cloud of bamboo water flutes (six pre-recorded by Chase, and one performed live) slowly shifts as the life of the river awakens. There’s a magic in not quite knowing where the wind along the riverbank becomes breath through the flute, or where rapidly rearticulated flute murmurings transform into the fluttering wings of a bird.
Lockwood says that “words alone cannot describe a river, because words are not multisensory.” Sound, however, is a bodily experience, and in Elwha!, one feels as if gently immersed in the river itself. Soft splashes of water over rock adopt an almost tactile physicality in the space, emerging from the surround mix like the spray of a river caught in the wind, cool and refreshing on the skin. Chase’s many recorded layers of bamboo flutes, sliding in pitch as they are dipped in and out of water, carry us into the river with the contour of its intricate currents. A moment of improvisation with the Elwha is captured using the hydrophone, dipped into the river and slowly lowered and lifted, performing with the Elwha as a living instrument, and sonically evoking a liquid xylophone.
Reflections of being
Lockwood’s recorded river sounds are not artifacts to be manipulated like motifs in a composition. Rather, she hears them as articulations of the river’s being, and as invitations to collaborate with the non-human world. Chase accepts the Elwha’s invitation into the entanglement. The voice crafted through her many flutes is one which is woven from the rich pitch and rhythmic material of the Elwha, informed by research assistant Aleks Pilmanis’s detailed transcriptions of the river’s music. The river’s vital song emerges, manifested through Chase’s solo platinum flute, carrying us through a winding journey, before finally coming to rest within a cluster of flute voices.
With each of the seven flutes dispersed to a different speaker, the interplay of breath and sound is highlighted with wonderful immediacy and proximity. These sonorities evoke a reverence in their resonance and a vibrancy in their timbral twisting, until eventually dissolving into a cadenza of whistling tones, like spirits in the wind. The rich and haunting voices of seven bass flutes then draw us to someplace dark and deep, while soft splashes from the water’s surface and birds high in the trees above sprinkle the space with lightness.
In the salmon pool
The poignant low flutes become occasionally accented by short grunting evocations, squelchy voices with a güiro-like timbre to them. The source? Farting salmon! These striking moments were recorded by researcher Dr. Kelsie Murchy of the University of Victoria, British Columbia, who generously allowed Lockwood and Chase to incorporate them. Since the liberation of the Elwha in 2014, its fish life – including all five species of native Pacific salmon and four species of anadromous trout – is returning in a demonstration of extraordinary resilience.
Lockwood was eager to collect sound recordings during the fall Chinook salmon spawning migration. She and Chase had already connected with David Tye, a fisheries researcher and resident of the area who knows the Elwha and its fish species well. Tye knew exactly where to find the salmon in their migratory return, and assisted Lockwood in recording near a logjam, which members of the Lower Elwha Klallam Tribe had constructed as a place for salmon to rest. The resulting recording is included within Elwha! and runs long and uninterrupted. We sit within this fishy world, the solo river dispersed through the seven speaker channels, swirling, currents bouncing off the logjam in intricate polyphonies as we listen to the mysterious exchanges of the salmon, the swishes and flaps of their tails.
A convergence of energies
The arrival at the river mouth is marked by the rising of many bubbling, tapping, whistling, thudding, rustling, gurgling, droning, bellowing layers emanating, gaining momentum, and eventually surging with urgency. Seven contrabass flutes are at the center of this convergence of energies at the climax of the work. As the mass of contrabass flutes fades, the glissandi voices of the bamboo water flutes re-emerge. We are left with Chase alone in the space with the diffused voice of the Elwha around her. We have followed the Elwha to its convergence with the ocean.
To experience this work is to join in celebrating the liberation of the beautiful Elwha River, and to tune one’s ears to movements around the world advocating for more reciprocal, relational ways of being with and caring for waterways. Words alone cannot describe a river, nor can they adequately describe this work: it is better to listen.
From the World Premiere of Elwha! at The Kitchen, December 2025. Images by Walter Wlodarczyk.
Annea Lockwood
Aotearoa New Zealand-born American composer Annea Lockwood (b. 1939) brings vibrant energy, ceaseless curiosity, and a profound sense of openness to her music. Lockwood’s lifelong fascination with the visceral effects of sound in our environments and through our bodies—the way sounds unfold and their myriad “life spans”—serves as the focal point for works ranging from concert music to performance art to multimedia installations.
In recent years Lockwood and her music have received widespread attention, including a Columbia University Miller Theatre Composer Portrait concert, a feature article in The New York Times, a SEAMUS Lifetime Achievement Award, a documentary film by director Sam Green, election to the American Academy of Arts and Letters, and a 2024 Fromm Foundation Commission. Her recent collaborative works Into the Vanishing Point with the ensemble Yarn/Wire and Becoming Air with avant-garde trumpeter Nate Wooley were released on Black Truffle Records to great acclaim. Her work has been presented internationally at institutions and festivals such as Lucerne Festival, Tectonics Athens Festival, Signale Graz, Counterflows International Festival of Music and Art, Huddersfield Contemporary Music Festival, and many others.
Lockwood has received commissions from numerous ensembles and solo performers, including Bang On A Can, baritone Thomas Buckner, pianists Sarah Cahill, Lois Svard, and Jennifer Hymer, the Holon Scratch Orchestra, Essential Music, Yarn/Wire, and Issue Project Room.
Her music is recorded on the Lovely, XI, Mutable, Pogus, EM Records (Japan), Rattle Records, Recital, Harmonia Mundi, CRI, Superior Viaduct, Black Truffle, New World, Gruenrekorder, and Moving Furniture Records. Hearing Studies, co-authored with Ruth Anderson, was published by Open Space in 2021.



Images of Annea Lockwood and Claire Chase from the workshop of Elwha!
at Tippet Rise Art Center, Montana.
Photos by Brian Langeliers for Tippet Rise Art Center









