Eirini Patsea was born in Athens where she studied classical singing with Christina Giannakopoulou at the Kodály Conservatory and choir conducting with Michalis Patseas, gaining her diploma with a First Prize. Eirini is a graduate of the Department of Music Studies of EKPA, and holds a Master's degree in Pedagogy of Song from the Kodály Institute in Hungary, while in 2016 she obtained a Master in Music Pedagogy, specializing in the Kodály System, from the Ferenc Liszt Academy.
In Hungary, she collaborates as a choir and as a vocal coach with the choirs' Ars Nova (conducted by Dr. Katalin Kiss), and New Ferenc Liszt Chamber Choir (conducted by Dr. László Norbert Nemes). From 2016 to 2018 she was assistant conductor in the Csíkszerda Budapest Community Choir (conducted by Dr. árpád Tóth), under whom she founded and conducted the Women's Chamber Choir. Eirini teaches music to preschool and school children at the Kodály and Athenaeum Conservatories, as well as the pedagogy of music based on the Kodály system, and Choir Conducting to students. She is an Assistant conductor at the Mixed Choir of the Kodály Conservatory in Athens. She founded and conducts the Fancy Chamber Female Choir. From October 2019 she conducts chórεs .