Jacob has played cello with the Little Delaware Youth Ensemble and the Empire State Youth Orchestra. He has performed at Carnegie Hall and Tanglewood with ESYO and studied cello with Ben Whittenburg and piano with Jane Curley. Esther divides her time between the flute, viola and piano. Her private teachers have included Diane Krick, Kitty Fitzgerald, Julian Wilcox, Carol Erlandson, Megan Dyer, Yi Ping Yang and Jane Curley. She has played flute with the Empire State Repertory Orchestra, viola with the Little Delaware Youth Ensemble, and the Empire State Youth Orchestra. Nathaniel Efthimiou has had private instruction from Uli Speth, Julie Signitzer, Jane Curley, Julian Wilcox, and Gina Bailey. He attended Houghton College and studied Music Composition and intends to continue his studies on violin, piano, organ, and conducting. Nathaniel was a member of the Little Delaware Youth Ensemble for seven seasons, composing and conducting twelve pieces for the ensemble and was also a member of the Empire State Youth Orchestra for two seasons. Rebekah Efthimiou is a student of renowned harpist, Yolanda Kondonassis. She graduated with her high school diploma from the Interlochen Arts Academy (IAA) in 2009 having studied with Joan Raeburn Holland. Before attending the IAA she was a student of Karlinda Caldicott and Meredith Bocek. She performed with the Little Delaware Youth Ensemble preceding a season as principal harpist with the Empire State Youth Orchestra in Albany, NY.
The Efthimiou Four came to WSKG studios in March 2011 performing in front of a live studio audience.