Complex sentence: The Puccini estate won a claim against Phantom of the Opera, when it sued for copyright infringement, the Opera "La Fanciulla del West" sounds exactly the same as the chorus of, "The Music of the Night".
Split into simpler sentences: The Puccini estate won a claim against "Phantom of the Opera", when it sued for copyright infringement. The opera "La Fanciulla del West" sounds exactly the same as the chorus of "The Music of the Night".