Wire Recorder Piece also called The Expression of Zaar is recorded in 1944.  From the CD album Crossing Into The Electric Magnetic, by Halim El-Dabh, released on Halim El-Dabh Music LLC in 2000 .

Halim Abdul Messieh El-Dabh (Arabic: حليم عبد المسيح الضبع‎ (Ḥalīm ʻAbd al-Masīḥ al-Ḍabʻ); born March 4, 1921) is an Egyptian-born American composer, performer, ethnomusicologist, and educator, who has had a career spanning six decades. He is particularly known as an early pioneer of electronic music, for having composed in 1944 the first piece of electronic tape music, specifically an electroacoustic musique concréte piece, and later for his influential work at the Columbia-Princeton Electronic Music Center from the late 1950s to early 1960s.

It was while he was still a student in Cairo that he began his experiments in electronic music. El-Dabh first conducted experiments in sound manipulation with wire recorder there in the early 1940s. By 1944, he had composed the first piece of electronic tape music or musique concréte, called The Expression of Zaar, pre-dating Pierre Schaeffer´s work by four years. [source]