 The resulting tape-based composition, entitled "The Expression of Zaar", was presented in 1944 at an art gallery event in Cairo.El-Dabh has described his initial activities as an attempt to unlock "the inner sound" of the recordings.While his early compositional work was not widely known outside of Egypt at the time, El-Dabh would eventually gain recognition for his influential work at the Columbia-Princeton Electronic Music Center in the late 1950s .