Complex sentence: Meanwhile, creating a unique Aramaic Hymns notation book with over 100 Aramaic hymns and having it published in 2002 to be used in all the Assyro-Chaldean churches worldwide.
Split into simpler sentences: Meanwhile, creating the Aramaic Hymns notation book with over 100 Aramaic hymns. The hymns were published in 2002 to be used in all the Assyro-Chaldean churches worldwide.