Complex sentence: The book and lyrics were written by Aslan-Levy, Sabi and Peto; the music was written by Sabi and Huelin together with Aslan-Levy and Peto, and additional music was written by Illias Thoms for the Utilitarian Barbershop Quartet.
Split into simpler sentences: The book and lyrics were written by Aslan-Levy, Sabi and Peto; the music was written by Sabi and Huelin together with Aslan-Levy and Peto. Additional music was written by Illias Thoms for the Utilitarian Barbershop Quartet.