The first public performance of his work ("Episodes for piano solo") took place just after the uprising of
May '68 at the "Latin America Hall" in Paris, receiving favourable reviews. After that, his music was often performed and he had his first commissions (by French Radio and TV, the Ars Nova Orchestra and the Dance Group of Vitry). After that period, several of his works are performed in renowned international contemporary music festivals (
Royan,
Reims,
Bordeaux and
Paris); at the same time, he worked on a regular basis with the contemporary dance group of
Vitry and the choreographer
Michel Cazerta. A portion of his Paris works were published by Editions Transatlantiques, and it was in Paris in 1974 that he released for the first time one of his works on record: Four-channel electro-acoustic music for the "Ballet Smog", one of the first pieces written for four-channel tape in the world. In Greece, he made his debut as a composer at the 4th Hellenic Week of Contemporary Music (
Athens, 19–26 September 1971) with his work "Docimology". He returned to Greece in autumn of 1975, this time to stay. At the invitation of
Manos Hatzidakis, he worked at the Third Programme of the
Hellenic Radio (1975–1976) as a freelance producer. In 1977, as a regular employee of the Hellenic Radio, he served as head of the music departments of the 2nd and 1st Programmes, and from the summer of 1982 to January 1994 as director of the 3rd Programme. In 1980, his music for
Pavlos Tassios' "
Parangelia" receives first prize at the Film Festival of Thessaloniki. He also wrote the music for Stigma, by the same director (1982),
D. Panagiotatos' The night with Silena (1986),
M. Ditsas' Night Exit (1991),
N. Grammatikos' U Turn (1991) and "A time to kill" (1993). Since the recording of "Without Boundaries" (1980), several recordings of his work have been released on several labels (
EMI, CBS, ENM, PRAXIS etc.), with favourable reviews. In the spring of 1991, he released his first digital recording (on CD), Silent Days, on UTOPIA; and in 1993, the CD Colours in Double, a tribute to the art of the great traditional music performer Vassilis Soukas, containing the works Colours in Double and Lyrical Suite (recorded live at the Festivals of Irakleion ('88) and Patra ('87)), in which the late musician had substantial solo parts. In 1999, his entire recordings were re-released in 8 CDs on FINEAS, a record label owned by S. Gavrielides Publications. Most of his work in the last few years has been commissioned by
Greek and other cultural authorities and organizations, and has been performed in
Europe,
Australia and
America by renowned music ensembles, such as the
Bolshoi Soloists, the Ensemble Modern of
Frankfurt, Polyrhythmia of Sofia, the Okada percussion ensemble of Tokyo, the Russo and Mlada Quartets, the Symphony Orchestras of Leipzig, Ljubljana, ABC (Australian Radio), ALEA (
Boston University), the Orchestra of the Hellenic Radio and the State Orchestra of Thessaloniki. In addition, from its very early days, the Athens Concert Hall (Megaron) has on numerous occasions commissioned and hosted works by Kyriakos Sfetsas, performed by famous Greek and other soloists and ensembles, including the organist Daniel Chorzempa and the Camerata Orchestra. ==Critical response==