Around 2016 or so, I did a Google search for lyrics of Music of the Night from Phantom of the Opera, since I am hard-of-hearing, wanting to find full lyrics in written form. However, all of the results I got back then ended with
Silently the senses abandon their defences...
And the rest of the melody continued without the lyrics. However, in another recording I got from a friend, it had more words to it that filled up that missing section. For the longest of time I've never been able to find it until yesterday, when I asked a friend of mine to help me. But at long last, I found out that it concluded with
Helpless to resist the notes I write, for I compose the music of the night.
Naturally, I wondered why such an omission was made, but I wasn't able to find anything definite, save that two sets of lyrics were published, supposedly because there were some minor legal controversies that were later settled.