Hagia Sophia, this timeless symbol of spirituality and transcendence, stands out for its unparalleled acoustics. Its architecture, with the imposing dome and curved surfaces, creates a sound that is not confined within space; instead, it is liberated. Within this unique acoustic environment, every sound is transformed, gaining depth and duration. The resonance of each chant, lasting eleven seconds, embraces the listener, turning the sound of Byzantine psalms into a mystical experience.


In the present day, the sound of Hagia Sophia is revived in the Church of Dormition of the Mother of God in Balino, a historic 16th-century church that had fallen into ruin and was fully restored two years ago.


Professor Jonathan Abel of Stanford University and the scientific team at the Center for Computer Research in Music and Acoustics captured Hagia Sophia’s acoustic fingerprint and, using modern audio tools, transferred it with precision to this new space.
Thus, the psalms are heard once again as they resonated in the temple centuries ago, offering the public an experience that bridges time, faith, and science.


This sound comes to life through the “Hagia Sophia - PeopleCert" Choir, created especially for this project. Thirty distinguished cantors, most with roots in Istanbul, chant psalms in authentic patriarchal style, within a space that faithfully reproduces Hagia Sophia’s resonance.

With the Revival of the Acoustics of Hagia Sophia - a monument that belongs to everyone, regardless of faith or origin - we highlight the universal value of our cultural heritage and offer the new generation inspiration and pride to continue this living bond with our roots and traditions. Because our Romiosyne is alive, inspiring faith, values, and hope.
Actions for the City of our Heart
Romiosyne in the City is a living continuum of history, culture, and values that must not be lost. All PeopleCert’s social initiatives are our own contribution to ensure the Greek Diaspora continues its emblematic presence.
The company’s initiatives concerning the City focus on three pillars: showcasing and preserving cultural heritage, actively supporting education and the new generation, and strengthening the Greek Diaspora in Istanbul through social solidarity actions.

“Ecumenical Patriarch” Award

The highest honorary distinction established to honor outstanding figures of the Greek Diaspora.
Showcasing Cultural Heritage

- Revival of the Acoustics of Hagia Sophia
- Restoration of the Church of Dormition of the Mother of God in Balino
- Restoration of the Church of Hagios Charalambos
- Care for the Preservation of the Holy Spring of Panagia Göksu

Supporting Education and the New Generation

- Support for the educational work of Zografeion Lyceum and the Great School of the Nation
- PeopleCert’s Scholarship Programme “Honouring our Teachers from Constantinople”
- Creation of the first playground in the Holy Metropolis of Chalcedon


Supporting the Greek Diaspora Community

- Contribution to the Ecumenical Patriarchate of Constantinople for the study and construction of a nursing home in Imbros
- Support for the Greek Diaspora Press in the City
- Sponsorships for associations and communities
Contributors

Contributors

Contributors

“HAGIA SOPHIA - PEOPLECERT” CHOIR
CHOIR DIRECTOR

Grigorios Daravanoglou - Archon Maistor of the Ecumenical Patriarchate

Efstathios Anats, Kostas Gerontidis, Vangelis Glaros, Thanasis Glaros, Grigorios Zarkos, Nikos Theotokatos, Daniil Iakovidis, Alexandros Kaffezas, Evangelos Kissas


CANTORS
Stamatis Kissas, Christos Kontakinos, Georgios Kounis, Panagiotis Koutras, Angelos Mathioulakis, Giannis Megaloudis, Christos Minaoglou, Panagiotis Bourboulis, Apostolos Detsikas, Spyros Papakostopoulos, Charalampos Sioufas, Nikolaos Stathis, Stefanos Symeonidis, Christos Trimintanis, Pantelis Tsipas, Nikolaos Tyrovolis, Efstratios Christidis


PROJECT IMPLEMENTATION COMMITTEE
A. Byron Nicolaides – Founder & CEO of PeopleCert Group, Committee Chair
Grigorios Daravanoglou – Archon Maistor of the Ecumenical Patriarchate, Vice Chair
Stamatis Kissas – Archon Protomaister of the Ecumenical Patriarchate, Member
Christos Minaoglou – Archon Maistor of the Ecumenical Patriarchate, Member
Charalampos Sioufas – Archon Protedikos of the Ecumenical Patriarchate, Member


SCIENTIFIC PARTNERS
Dr. Jonathan Abel – Professor, Stanford University, Center for Computer Research in Music and Acoustics
Dr. Constantin Basica – Lecturer, Stanford University, Center for Computer Research in Music and Acoustics
Dr. Hassan Estakhrian – Lecturer, Stanford University, Center for Computer Research in Music and Acoustics


PROJECT ADVISORS
Giorgos Doukidis, Andreas Rompopoulos, Serafeim Konstantinidis


PeopleCert TEAM
Eleni Nicolaides, Vasiliki Mandilara, Aliki Tsirozidi, Themis Karvountzis


TEXTS - EDITING
Fotini Kalliri


ECCLESIASTICAL TEXTS - SCORES
Kosmas Kifokeris


ECCLESIASTICAL COMMITTEE – BALINO CHURCH OF DORMITION OF THE MOTHER OF GOD
Simeon Soltaridis, President
Michalis Kontos, Vice President
Danae Palakoglou, General Secretary
Giorgos Kyriakidis, Treasurer
Kyveli Kiourtsou, Member
Desi Kontos, Member


PROJECT SECRETARIAT
Maria Dimou