What "that said" exactly mean and how to use the phrase correctly?

Question

Basically you could find "that said" at the very beginning of a sentence especially in written English. Please show me examples when answering the questions. Thanks a lot!

Does it have an equivalent? Does it function like "i.e." or "however"?

Answer 1

"Learning to play the piano can be a rewarding experience. That said, you must also be prepared for its cost and the many years it will take to become good at it."
It functions almost identically to the word "however." It means, essentially: please consider the merit of what I've already said, but you must consider other opposing facts as well.

Answer 2

Paladin has rightly explained that it would basically be used immediately after making a declarative sentence to establish a point, then making another point while holding the first one in consideration.THAT SAID let me now give you a alternative.

"That said",is a shorter way of using,"Having said that".

A similar usage is,"That done",which is a shorter way of saying,"Having done that".

e.g. We have finished painting the house.That done,let us now polish the floor.

Answer 3

It would basically be used immediately after making a declarative sentence to establish a point, then making another point while holding the first one in consideration.

Answer 4

There are 9 known and confirmed planets in the solar system. Wait a minute... astonomers recently downgraded Pluto from planet status. That said, we will have to rewrite all the textbooks.

Answer 5

I need these clothes washed right now, with that said and done,
I'm going to lunch. It really should'nt start off a sentence because
it's usually used with a preprosition in front of it. That's where the comma comes in.