Index

Tree of Life (2024) 25′

for clarinet, piano, violin, cello
commissioned by Anzû Quartet
premiered by Anzû • March 9th, 2025 at Roulette NYC

Then the angel showed me the river of the water of life, bright as crystal, flowing from the throne of God and of the Lamb through the middle of the street of the city. On either side of the river is the tree of life with its twelve kinds of fruit, producing its fruit each month; and the leaves of the tree are for the healing of the nations.

Revelation 22:1-2, New Revised Standard Version

Procession (2023) 18′

for baritone voice, trumpet, trombone, bass clarinet
commissioned by Loadbang
premiered by Loadbang • December 1st, 2023 at Church of the Intercession NYC

Procession is a single movement work of about 18 minutes duration, written in June of 2023 during a residency at Avaloch Farm Music Institute.  It is based on a sequence of 12 chords, which cycle over the course of seven sections as a continuously varied progression of melodic tracings, rhythmic patterns, and riffs.  Notably, Procession is my first new chamber work since 2017, during which time I’ve developed my practice in live electronic music, among other pursuits. As such, I have returned to writing for acoustic instruments with a renewed focus on evoking states of continuous flow.  The title references this stylistic direction by way of Christian theology, where it describes the emanation of the Holy Spirit. 

Labrys (2017) 9’

for bassoon and electronics
commissioned through ICE’s First Page, with generous support from Connie Steensma and Rick Prins
premiered by Rebekah Heller • June 11th, 2017 at Ojai Festival, CA

A labrys is a double headed battle axe, which was widely used in ancient Minoan culture as a symbol of feminine divinity.  This piece builds on the legacy of my works for solo performer with electronics, in particular The Soul Is the Arena, written for Joshua Rubin in 2010, and Luciform, written for Claire Chase in 2011.  The opening section features an archaic modal melody that culminates with one of Rebekah’s techniques – a primal scream played on the bassoon’s high G.  The detailed exchange that follows is based on polymetric repetition; Rebekah’s arpeggio-line enters every 4 beats, while the synthesizer “hits” enter every 7 beats.  This displacement provides the framework for a larger scale unfolding of tersely interlaced gestures, which periodically converge in bursts of energy. Accompanied by shimmering, bass heavy electronics, Rebekah fluidly commands and extends the range of her instrument, encompassing hypnotic, lyrical, volatile, and luminous states. 

Score available at Project Schott New York

Sacrament (2017) 13’

for flute, clarinet, marimba, and electronics
commissioned by Katarina Pistor and Carsten Bonnemann
premiered by Talea Ensemble: Alex Lipowski, Barry Crawford, Marianne Gythfeldt
February 17th, 2017 at National Sawdust, Brooklyn

Sacrament uses repetition and variation to explore connections between speed and resonance, spaciousness and overload, growth and decay. In the opening section, arpeggiating woodwinds summon a distorted synth line, leading to a series of riff-oriented sections that cycle back to a varied beginning, nine minutes later. As in many of my works, the performers in Sacrament are invited to strike a balance between fierce precision and transformational nuance. The flute creates virtuosic contrasts between rapid fire arpeggios and “distorted” breath tones, the clarinet evokes fluidity and color, while the marimba alternates between hypnotic riffs, stentorian pulses, and ecstatic gestures that dance on the threshold of syncopation and pointillism.

Score available at Project Schott New York

Lightmass (2016) 24’

for brass quintet and synthesizer
commissioned by Los Angeles Philharmonic Association
premiered by LA Phil New Music Group • October 1st 2016 at Walt Disney Concert Hall, Los Angeles
Thomas Hooten, Christopher Still, Andrew Bain, David Rejano Cantero, Norman Pearson, Joanne Pearce Martin

Movements:
i. 9’
ii. 6’
iii. 9’

third movement

light (illumination, ignition, weight)
mass (body, totality, ritual, weight)

The three movements of “Lightmass” evoke living architectures and urban spaces – outward manifestations of inner experience, a living building as a divine body. The first movement can be equated with a gothic cathedral (St. John the Divine, NYC), with music evoking an organ, ecstatic plainchant, stained glass windows, and many different kinds of shimmering light.  The contrasting second movement evokes imposing modern and art deco architecture, ancient pyramids, aerodynamic curves, the metallic steel of skyscrapers, and the contemplative awe of expansive urban landscapes. The third movement is transformational, and begins with chant-like sounds evoking playful dancing light, and the heaviness of stone. Following this introduction, a repetitive and ritualistic chant-like passage is gradually transformed into a much more fluid sense of time, where different types of musical material co-exist with one another. A confluence of green spaces, deep breathing, the inner radiance of hard matter, shimmering light, and subterranean depths.  At the premiere, the composer John Adams praised the work’s “stentorian gestures”.

Mysterium (2016) 14’

for flute, clarinet, bassoon, and electronics
commissioned through ICE’s First Page Program
premiered by Claire Chase, Joshua Rubin, Rebekah Heller (ICE)
August 4th, 2016 at Time Spans Festival, Colorado

Mysterium was written for Claire Chase, Joshua Rubin, and Rebekah Heller, in celebration of a collaborative history dating back to 2006. As such, it is a synthesis of several styles I’ve explored since we began working together, thematically inspired by the evocation of supernatural phenomena and religious ritual (mysteries). These include archaic modal melody with florid ornamentation, the blending of analog synthesizers and acoustic instruments through overlapping fluctuations of pitch and noise, spectral transformations, and echoes of religious-themed modernism in the tradition of Klang-era Stockhausen. I chose the title in tribute to its myriad historical associations, which include the Eleusinian Mysteries, the liturgical chant O Magnum Mysterium, and C.G. Jung’s Mysterium Coniunctionis, a treatise on his extensive study of alchemy.

The rhythmic figure heard in the opening melody is derived from the “sat-nam” chant of kundalini yoga, which roughly translates to “truth is my name.” The long sustained tones on “nam” are ornamented with melodic flourishes inspired by Algerian gasba flute music, alongside the colorful noise of Ciat-Lonbarde and Moog synthesizers. Following this introduction, an incantatory bassoon solo emerges, summoning a primal feeling of longing. The full dynamism of the trio unfolds in response, balancing ethereal passages with tight unison gestures. The remainder of the piece carves pathways through a series of ritualistic vision states, and concludes with a transformation of the C spectrum, using graphic notation to guide performers in “sounding the beyond”.

Score available at Project Schott New York

Cantus (2016) 6′

for solo cello

Commissioned by Talea Ensemble and Chris Gross for the Cello Solos Today project. Cello Solos Today is supported by New Music USA, through a generous contribution from Elizabeth and Justus Schlichting.

premiered by Alec Larsen • February 5th, 2017 at Greenwich House Music School, NYC

mariodiazdeleon · Cantus for solo cello

score available via Project Schott New York

Cantus is inspired by the metrically free style of plainchant, in particular the music of Hildegard of Bingen. The score is proportionally notated, and gives no indications regarding rhythm or tempo. Instead, the player is invited to devise their own phrasings, timing, and articulations. In the beginning of the work, short melodic motives alternate with tremolos and long sustained tones, which eventually give way to florid melismatic passages. When played with reverberation, ecstatic melodies create harmonic resonances, while expansive sustained tones serve as refrains, recalling the reciting tones heard in sacred vocal chant. The work climaxes with a paraphrase of Hildegard’s Nunc Aperuit Nobis Clausa Porta (Today A Closed Portal Opened For Us), an antiphon to the Virgin Mary. This gives way to a primordial evocation, resounding in the form of a low open G.

Irradiance (2016) 11′

for cello and electronics
a collaboration with Mariel Roberts
recorded by Stephen McLaughlin at EMPAC

Mariel and I previously worked together during her tenure in Mivos Quartet, who have performed my piece Moonblood extensively since 2012.  This collaboration began with her invitation to work together on a solo piece, and was recorded during the sessions for her album Cartography.  Tuning the lowest string of her cello down to an incantatory G, we used my pre-recorded electronic loops as an aural score which Mariel interpreted by ear.  The opening is a call and response between the extremes of the cello’s register, evoking a liturgical responsory. Over time, these transform from cavernous depths into a climactic and joyous frenzy of noise riffs.  The title references The Irradiant Force of Sound, a 2003 talk given by the composer Iancu Dumitrescu, and describes the act of shining brightly.  More specifically in the context of Dumitrescu’s thought, it refers to a sacramental revealing of the inner life of sound.  It is dedicated to the great composer, conductor, and musicologist Ana-Maria Avram (1961-2017), a dear friend and fearless advocate for the advancement of spectral musics.

Sanctuary (2016) 54’

for ensemble (fl, cl/b.cl, sop., vln, perc/marimba, synth)
commissioned by TAK Ensemble and Chamber Music America
premiered by TAK Ensemble, May 25th 2016 at Roulette, Brooklyn

recording released by Denovali, 2017

i. Blades of Light
ii. Balance
iii. Heart Cave
iv. Seraph Synapse
v. Sanctuary
vi. Tongues of Fire

Sanctuary marked a new direction in my work, in that it more fully embraces the riff-oriented repetition present in my solo electronic and metal music, combined with my roots in modernist, spectralist, and minimalist approaches to modern classical composition. Sanctuary is a word derived from the latin Sanctuarium, literally meaning a “container” for holy things (sancta or sancti).  Over time the meaning was extended to include places of safety, where one was safe from arrest due to the laws of the church.  Architecturally, it can refer to a specific place around an altar in a Christian church, an intermediary or threshold space inhabited by divine presence, namely where the eucharist or divine body is received.  Anthropologist Marcio Goldman, in his writing on the Afro-Brazilian religion of Candomble, distinguishes between cosmological systems (i.e. mappings of divine and human worlds, virtual and real worlds) and the actions the cosmology allows practitioners to produce. That learning a religion like Candomble, “cannot mean passive apprehension but rather an experience that modifies all of the elements involved in that process – the matter being ‘transmitted’ and ‘assimilated’, but also the agents or subjects who…are engaged in an ongoing transformational process.”  In this work, I seek to explore the idea of a sanctuary as a space to enable action, and spiritual practice as a technology for transforming the self and the senses.  The musicians of TAK engage in sonic actions, transformational processes, and negotiations with virtuality.  The sensory elements present in this work; sound and light relationships, acoustic and electronic sound, stark rhythms and ecstatic gestures, may suggest ways of navigating threshold spaces, cultivating sanctuaries of interdependency, connectedness, and power.

Anima (2016) 11’

for three cellos
commissioned through ICE’s First Page Program
premiered by Kivie Cahn-Lipman, Katinka Kleijn, Michael Nicolas (ICE) • March 4th 2016 at Abrons Arts Center, NYC

“Anima” for three cellos, was written as a response to “Sumna” a work of mine for solo viola da gamba.  These form part of a group of works inspired by ancient vocal traditions of the east and west, in particular the vocal styles of Hildegard von Bingen, Sephardic music of Medieval Spain, and Tibetan Buddhist chant.  The trio uses a melodic fragment from Sumna as its basis, a kind of “lamento motif”of a descending melodic figure, expressing sadness or grief. The “lamento motif” has a long history in Western music, dating back to the “Lamento di Tristano” of the 13th century, all the way through works by Purcell, Monteverdi, and Bach.  Envisioning the trio as a kind of ecstatic consort music, I arranged the lamento motif using a heterophonic texture, where each instrument plays simultaneous variations on the same melody. This is contrasted by more the more primal sound of the introduction, a kind of chanting pattern that evokes both meditative breathing and the low bass voices of Tibetan Buddhist ritual.  The title is a latin word which has various meanings, including a current of air, wind, air, breath, the vital principle, life, and soul.