 Just was born on 7 July 1908 in Vizhnitz, Bukovina (now Vyzhnytsia, Ukraine) in 1908 to rabbi Nisan Just, chief composer for Vizhnitz dynasty and gabbai of the late Vizhnitser Rebbe.Just died at his home in Amsterdam on 9 April 2010, at the age of 101.His memorial service was held at the Raw Aron Schuster Synagogue in Amsterdam and he was buried in Israel.