To see, to watch, to meet - 看 vs 见 vs 看见 I've seen 看 used on its own, 见 used on its own, and 看见 used together.

My understanding:


看 means "to see" or "to watch"， objects are typically inanimate (i.e.
not people) 
见 means "to see" or "to meet", objects are typically
people


Is the above correct?

Why would you use 看见？ This (Rocket Languages) site suggests it means "to catch a glimpse of".  Specifically, why use 看见　instead of just 见　？

It's even a website! where the object is 音了 -- as in, "see the music" ?

The Rocket Languages site also explains the complement form, 看不见　which suggests "can't" -- are there other examples
your understanding is correct for the basic use.
the difference between 看 and 看见，the latter usually means 'have seen/watched', which emphasizes the fact that sb saw sb/sth in the time before.