Theodore's schooling in piano and traditional Greek folk music led to the beginning of his music path in London, where he studied Music Composition in 2011.
His debut album (It Is But It’s Not), was mixed by Ken Thomas (Sigur Rós, Moby, M83) and performed live at the Abbey Road Studio 2 in London. Theodore’s cascading second LP Inner Dynamics was announced on NPR's All Songs Considered by B. Boilen and R. Hilton, who also premiered third single, ‘Disorientation’ on their show. With over 2 mil. YouTube views, and a growing fanbase Theodore has supported Sigur Ros and DIIV, and among other festivals, he performed at Reeperbahn 2017 returned in a packed venue at Reeperbahn 2018, played Eurosonic 2018, Musexpo LA 2018 and SXSW 2018 & 2019 (where he was picked as NPR Music's ‘Favorite Discoveries And Memorable Moments’. He ended his 40-dates headline tour in Europe and the US with an exclusive concert on Bob Boilen’s Tiny Desk. His music and memorable live performances have received the best reviews from international media such as Gigwise, CLASH Mag, Music Week, Tsugi, FGUK, Gaffa and Szene Hamburg and radio play from the likes of BBC Radio 6 Music. Theodore’s atmospheric sound is created in cinemascope: an epic mix of classic, piano-driven compositions, with electronic elements ranging from ambient and minimal, to gritty 80s synth-wave. Repetitive drums and shimmering guitars lie under the monolithic songs, topped by Theodore’s hauntingly beautiful vocals.