Rubuta ci gaba don wannan sakin layi - An haifi Demetrio Stratos a matsayin Efstratios Demetriou a Alexandria, Misira a ranar 22 ga Afrilu, 1945, na iyayen Girka (Janis Demetriou da Athanassia Archondoyorghi). Ya shafe shekaru 13 na farko a Alexandria inda ya yi karatun piano da accordion a sanannen "Conservatoire National d'Athènes" ("National Conservatoire of Athens"), kuma ya yi karatun Ingilishi a Makarantar Boys ta Burtaniya. Kamar yadda ya fada daga baya, kasancewar an haife shi a Alexandria ya sa ya ji kamar "mai tsaron gida" na musamman da gata a cikin otal na duniya, wanda aka ƙaddara don rayuwa da ƙwarewar hanyoyin mutane da kuma taimakawa a cikin ainihin "zirga-zirga" na al'adu a yankin Bahar Rum, cike da kabilu daban-daban da kuma ayyukan kiɗa mai ƙarfi. Iyalinsa na addinin Orthodox na Girka ne, don haka a lokacin ƙuruciyarsa ya saurari waƙoƙin addini na Byzantine, kiɗan gargajiya na Larabci sannan kuma farkon farawar dutsen dutse. Dukan waɗannan sautunan sun shafe shi sosai a dukan rayuwarsa. A shekara ta 1957, saboda abubuwan da suka faru na siyasa
wanda ya bata wa Masar rai, an tura shi zuwa Kwalejin Katolika na Kasa Mai Tsarki a Nicosia, Cyprus inda, bayan shekaru biyu, danginsa suka bi shi.