Grading juries T. Apostolidis, A. Garoufalis, K. Nonis, M. Xairogiorgou, D. Sgouros, M. Hallecker: Grading juries for Eleni Halecker's graduating examinations, January 1985.
Distinction Award of the gold medal prize form the distinguished musicians Mr. K. Nonis and Mr. Th. Melas.
Concert Soloist E. Hallecker with the Thessaloniki state Orchestra, Alkis Baltas, conductor, 1988.
Piano recital Piano recital at the "Parnassos" concert hall.
Vienna At the Vienna Music Academy, 1989.
With Max Hallecker With Max Hallecker at the concert for two pianos at the Hestia Neas Smyrnis Megaron.
With Erick Friedman Next to the famous violinist Erick Friedman.
With Alfred Brendel Max and Eleni Halecker with the famous pianist Alfred Brendel.
With Ioannis Hallecker Ioannis and Eleni Hallecker at the "Atheneum" cultural center after their concert for two pianos.
With Viron Fidetzis Soloists Elini and Ioannis Hallecker performing Mozart's double concerto for pianos with the Athens State Orchestra. Viron Fidetzis, conductor, 2001.
At the Israel-Greece Friendship Association Eleni and Ioannis Hallecker with Israel's ambassador in Athens Mr. Ran Curiel, after their concert for two pianos at the "Israel-Greece Friendship Association".
