Complex sentence: Later in the piece, Mäntyjärvi uses a tight (chord?) to suggest the shriek of shearing metal; the "anima eorum" section mimics the transmission of an "SOS" signal in Morse Code.
Split into simpler sentences: Later in the piece, Mäntyjärvi uses a tight chord to suggest the shriek of shearing metal. The rhythm of the "anima eorum" section mimics the transmission of an "SOS" signal in Morse Code.