Ennio Morricone was an iItalian song writer, he who died two weeks ago. Ennio Morricone was an Italian song writer who died two weeks ago.

Ennio Morricone was an iItalian song writer, h. He died two weeks ago. Ennio Morricone was an Italian song writer. He died two weeks ago.

You can also use a semicolon.

I have known him since I was a child. I have known him since I was a child.

I have known of him since I was a child. I have known of him since I was a child.

One can "know" famous people in the sense of recognizing their names or knowing of their work, but it's a somewhat informal usage.

I have known hims work since I was a child. I have known his work since I was a child.

Know sort of works, but makes it seem like you knew him personally

At home there was a "best of of him" album of his music and I have always loved his songs. At home there was a "best of" album of his music and I have always loved his songs.

At home, there was a best ofcompilation album of hims and I have always loved his songs. At home, there was a compilation album of his and I have always loved his songs.

He wrote the musicsountracks for the films of Sergio Leone. He wrote the sountracks for the films of Sergio Leone.

La musique ne peut pas devenir musiques

He wrote the musics for the films of Sergio Leone. He wrote the music for the film of Sergio Leone.

He wrote the musics for the films of Sergio Leone. He wrote the music for the films of Sergio Leone.

I have just seen "Once uUpon a tTime in the wWest"." I have just seen "Once Upon a Time in the West."

I have just seen "Once uUpon a tTime in the wWest". I have just seen "Once Upon a Time in the West".

The work uses title case, so we should use it here as well.

I have just seenaw "Once upon a time in the west". I just saw "Once upon a time in the west".

sounds more natural

The music and the movie really matchwork well together. The music and the movie really work well together.

Now I would like to see theLeone's other films of Leone. Now I would like to see Leone's other films.

Both of these are equally correct, but a native english speaker would always use Leone's.