did ozzy write his own music?

Answer 1

He wrote some of the lyrics for Black Sabbath although Geezer Butler wrote most.

In his solo career he writes all the lyrics unless otherwise noted.

To my knowledge he has never written any of the music.
His numerous guitar players write the actual instrumentation.

Answer 2

I'm sure he has always written his own music.

Answer 3

yes,

He cant talk to well but he can write.

Answer 4

probaly not