Papageorgiou’s music has and always has had a certain predilection towards various forms of similarity and structural reiteration. In such a context, structural redundancy and parsimony stand at the epicenter of his work, as recurrences of patterns that share the same underlying structure unfold in time, elaborating centripetally on the same structural complex or similar structural features, again and again, creating, maintaining and exalting one or various states from a single or from a variety of perspectives.
He has appeared in festivals, conferences, and concerts in most European countries (Germany, Austria, Switzerland, France, Italy, Finland, Netherlands, Spain, Croatia, Greece, Cyprus), in Russia, Serbia, Armenia, Iran, Turkey, and several States of the U.S.A. (NY, CA, IL, FL, OH, IA, OK, NV, etc). Most notably his music has been performed at Darmstadt Ferienkurse für Neue Musik, Unerhörte Musik (Germany), Klangforum Concert Series, Konzerthaus Wien; Musik Protokol, Graz; Klangspuren, Schwaz; Tage Neuer Musik, Graz; 4020.Mehr als Musik, Linz (Austria), Avignon Festival (France), NUNC4, Chicago; Grains of Sound, San Francisco; Florida Electroacoustic Music Festival; Research on Contemporary Composition Conference, University of North Georgia (U.S.A.), TUUDEN MUSIIKIN LOKAKUU Festival (Finland); Dialog, Gare du Nord – Bahnhof für Neue Musik, Basel; Forum Wallis Contemporary Music Festival (Switzerland), Diffrazioni Florence Multimedia Festival; Il Suono Music Week (Italy); ME_MMIX, Festival de Música Electrónica, Mallorca (Spain), ICMC|SMC International Computer Music Conference, Athens; Onassis Stegi, Athens; Off Borders, Thessaloniki; Freiraum Festival, Thessaloniki (Greece), Pharos Arts Foundation 3rd International Contemporary Music Festival (Cyprus), Tehran International Electronic Music Festival (Iran), 28th International Review of Composers, Belgrade (Serbia), inner sOUNDscapes (Oklahoma, USA), etc. He has collaborated with ensembles such as Arditti String Quartet (UK); Klangforum Wien, Reconsil, Zeitfluss, Airborne Extended, Studio Dan, Trio ArtResonanz, Pro Arte Chor (Austria); Proxima Centauri (France); Ensemble Il Suono Giallo (Italy); Interface (Germany); Ensemble Et Cetera, CNM Ensemble Iowa, BGSU New Music Ensemble, Neophonia, University of Nevada New Music Ensemble (USA); Oerknal (Netherlands); UMS & JIP (Switzerland); Ensemble Assonance (Armenia); Thessaloniki National Orchestra, Radio Symphony Orchestra Athens, dissonart, Trio IAMA, duo Goliardi (Greece).
He has received commissions from several institutions — such as the Institute for Electronic Music and Acoustics of the University of Music and Drama at Graz; the Austrian National Radio (ÖRF) and Literature Forum Grazthe project “Common Lab”, a Goethe-Institut Excellency Initiative by Goethe-Institut Thessaloniki & ArtBOX; SCI/ASCAP (U.S.A.); the Kultur Zentrum bei den Minoriten Graz; the Thessaloniki Concert Hall; the Il Suono Contemporary Music Week; the Yarava Music Group (Tehran, Iran); the Delian Academy for New Music supported by the Siemens Music Foundation — and performers and ensembles — such as Dimitri Polisoidis (violist of the ensemble Klangforum, Austria), the Ensemble Interface (Germany), the Zeitfluss Ensemble (Austria), UMS & JIP (Switzerland), Trio IAMA (Greece), the Ensemble Etcetera (USA), the duo Goliardi (Greece), etc.
In December 2016 he served as visiting composer at the University of Iowa School of Music and the University of Nevada at Reno; in April 2017 he was visiting composer at the University of Music, Drama and Media at Hanover, and in June 2017, 2018, 2019, 2021 as a faculty member at the Delian Academy for New Music, an international summer academy for composers, which is curated under the auspices of Georges Aperghis. Since 2017 he holds composition master classes in Tehran, Iran.
For five years, from 2012 to 2014 he worked on two artistic research projects of the Institute for Electronic Music and Acoustics of the University of Music at Graz, Algorithmische Komposition in Kontext neuer Musik and Patterns of Intuition. These collaborations have led to publications at Graz, Austria: Institut für Elektronische Musik und Akustik, Universität für Musik und Darstellende Kunst Graz, 2012 and New York: Springer, 2014, respectively.
He is one of the artistic co-directors of outHEAR New Music Week. He is also an artistic advisor and a member of the scheduling committee of the Tehran International Electronic Music Festival.
Currently an associate professor of composition, he was appointed at the Department of Music Studies of the Aristotle University of Thessaloniki in 2007.