The Music App on the iPhone SE (iOS 11.2.1)

Hi I have just placed a song on itunes on the Mac (the song I imported from a CD-rom with a USB stick). I have modified the text of the passage in the text section and I saved it. When I synced the song with the iPhone, on the latter I did not see (and even now I do not see the text. On iTunes however it is still changed! how do I do that?

P.S. Use macOS High Sierra, and the most recent version of iTunes available.