Ilarion Ionescu-Galaţi played with soloists such as Lazar Berman, Radu Lupu, Fazil Say, Felicia Filip, Daniil Shafran, Igor Oistrakh, Valery Oistrach, Viktor Pikaisen, Rudolf Kerrer, Ion Voicu, Magda Tagliaferro, Idil Biret, Ayla Erduran, Sabine Meyer, Costas Cotsiolis, Aris Garoufalis, Theodore Kerkezos and several others.