Greek pianist and vocal coach Christos Marinos has appeared in collaborative piano recitals and concerts in New York, Minneapolis, London, Vienna, Innsbruck, Athens, Thessaloniki and other European cities. He has premiered works by Greek and foreign composers, some written for and dedicated to him, in Europe and the United States. Christos has played for the studios of Metropolitan Opera singers and for coachings at the Lindemann Young Artist Development Program. He explores and performs lesser-known art songs, writes music articles, translates music books, participates in summer festivals as a recitalist, vocal coach and music director, gives lecture-recitals, and is an active music researcher, pedagogue and Greek diction coach. He is passionate about the vast and unique world of  Greek Art Song, which he continuously researches, performs, coaches and teaches in Greece and abroad. He has performed vocal works by more than 30 Greek composers, from the Ionian School until our time.

In 2017, together with opera dramaturg, libretist and stage director Antigoni Gaitana, they founded the Colla Voce Workshop for classical singers and collaborative pianists, the first of its kind in Greece. The workshop takes place at the Horto Festival in the summer and at the Musical Praxis Conservatory in Athens during the academic year. The workshop's first opera production was the Greek premiere of Riders to the Sea by Ralph Vaughan Williams. During the Horto Festival, Christos teaches the class “Analysis, Repertoire and Interpretation” for classical singers and collaborative pianists, appears in recitals with singers, works as a vocal and diction coach, plays for vocal masterclasses and is the music director of the opera productions. In 2002, he was appointed curator of the Jani Christou Archive in Athens for ten years, and in 2017 he became a basic contributor to the Archive of Greek Classical Composers. In June 2018, soprano Mária Devitzáki and Christos recorded the four books of Dafydd Bullock’s Stormlieder, in Germany. He was worked as an article writer at classicalmusic.gr and as a classical music adviser at RadioArt. His most recent article can be found in the music periodical ​Krystallini Faretra (Elikranon Publications)​.

Christos holds a Doctorate in Collaborative Piano Performance (D.M.A.) from the University of Minnesota (studio of Timothy Lovelace), where he also studied musicology as a secondary field and served as a teaching assistant, and a Master’s in Collaborative Piano Performance (M.Mus.) from New York University (studio of Grant Wenaus), where he served as adjunct instructor and staff accompanist. He holds diplomas in Piano Performance, Tonal Harmony, and Baroque and Renaissance Counterpoint from Conservatories in Greece, as well as the Recital Certificate in Piano Performance —with honors— from the Guildhall School of Music and Drama. Very significant to his development was his association with pianist, conductor, pedagogue and author George Hadjinikos, with whom he studied privately for ten years. In addition, he has taken cello, voice and conducting lessons, and has participated in masterclasses by Eteri Andjaparidje, Margo Garrett, Evgeny Kolmanovich, Diane Birr, Zouzou Nikoloudi a.o.​