Our Story & Mission

A quiet devotion to the music that has shaped worship for centuries.

Deo Omnism Gloria was founded on a single conviction: that the sacred choral and liturgical music of the Western tradition deserves to be studied, sung, and shared — not only by cloistered choirs, but by every worshiper who seeks depth, beauty, and continuity with the Church's song.

Heritage · Since 2014

What began as a hand-copied Kyriale became a quiet movement.

In the autumn of 2014, a small group of singers, organists, and liturgists gathered in a borrowed chapel to record a single Gregorian Mass for a friend who had fallen ill. They had no budget, no label, and no audience beyond the dozen people in the pews. But when the recording was shared, requests arrived from parishes, monasteries, and seminaries on three continents — and Deo Omnism Gloria was quietly born from that first cassette.

A decade later, the project has grown into a curated archive of chant, polyphony, and hymnody drawn from both the Catholic and broader Christian sacred tradition. We work alongside living composers, transcribe manuscripts from crumbling breviaries, and partner with chapels and cathedrals to preserve performances that would otherwise be heard only once. Every score, recording, and translation we publish is offered freely — because we believe the Church's song belongs to the Church, not to a marketplace.

The tradition is not a museum. It is a living conversation — and we are merely the latest voices permitted to join it.

— From the founding charter

Our Mission & Values

Three convictions that guide every score, every recording.

We are a small, deliberately slow project. These principles are not a marketing statement; they are the working rules by which our editors, transcribers, and choirs decide what enters the archive.

Preservation, not invention

Our first duty is to the tradition itself. We transcribe, edit, and re-record works that are out of print, neglected, or scattered across manuscripts in unreadable notation — always with scholarly care and reverent restraint.

Liturgical fidelity

Music in the archive is not abstract repertoire. Each piece is documented with its proper liturgical context — feast, season, rite, and function — so that choirmasters and worship planners can place it where the Church has always sung it.

Freely given, never sold

Sacred music is not a commodity. Every score, translation, and high-fidelity recording on Deo Omnism Gloria is released under a non-commercial license, free for any parish, choir, or worshiper who wishes to use it in genuine worship.

Editorial Principles

How we choose what enters the archive.

A score must clear four thresholds before it is published under the Deo Omnism Gloria imprint. We apply the same criteria to a plainsong antiphon as to a modern hymn tune.

I

Provenance & accuracy

We trace every source. Whether a piece comes from a fifteenth-century antiphonal, a newly composed setting, or an oral tradition, we publish the chain of evidence — facsimile images, colophons, manuscript shelfmarks, and composer statements — alongside the modern edition.

II

Sung, not merely written

A score on our site is paired with a recording made by real singers in a real acoustic. We do not publish music we have not heard performed. If a piece cannot yet be sung convincingly, it waits in the editorial queue until a chapel or choir can give it breath.

III

Accessibility without dilution

We provide English translations, brief rubrics for rubrical use, and a difficulty rating — but we never simplify the underlying music to make it easier. The integrity of the composer's intent is non-negotiable; only the surrounding scaffolding is softened.

IV

Open licensing & attribution

Every edition carries a clear license, a credit line for the transcriber and (where known) the original composer, and a request — never a requirement — that downstream users mention the source. The chain of gratitude must remain visible.

By the Numbers

A decade of quiet, faithful work.

1,840+
Scores in the archive
62
Manuscripts digitized
41
Partner chapels & choirs
0
Subscription fees, ever

The People Behind the Project

A small bench of scholars, singers, and scribes.

We have never been a large organization, and we have no intention of becoming one. The archive is curated by a core team of four, supported by a wider circle of contributing transcribers, vocal ensembles, and liturgical consultants.

Cyprian Moreau

Founding Director & Choirmaster

Trained in Paris and Rome, Cyprian oversees the editorial calendar and conducts the resident schola. He is the author of two books on the restoration of Renaissance liturgical polyphony.

Renata Aldobrandi

Lead Musicologist & Archivist

Renata holds a doctorate in palaeography from Bologna. She leads our manuscript transcription program and curates the manuscript facsimile library in the public archive.

Father Jonah Ó Briain

Liturgy Editor & Theological Consultant

A parish priest and former cathedral precentor, Father Jonah reviews every publication for rubrical accuracy and pastoral suitability. He writes the weekly Office commentary.

Adelia Lindqvist

Recording Engineer & Producer

Adelia designs the project's signature acoustic profile — natural reverberation, no compression, no tuning correction. She records on location in chapels across Europe and the Americas.

Walk With Us

If this work resonates with you, you are already part of it.

Deo Omnism Gloria is sustained by parishes, choirs, and individuals who believe that the Church's song is worth the labor of keeping. Listen in the library, sing from a score, or simply remember us in your prayers — every form of support is received with gratitude.