Need help naming this platform in my back yard

What do I call a semi-circular concrete platform in my back yard that looks like a stage. It is about 30 inches above my grass lawn and is attached to my rear wall and appears that it could be a band stage. We currently use this as a conversation/fire pit area and it is always difficult to describe to someone who has not seen it. Photo attached:

Solution 1:

It is a raised patio

See Images for raised patio

I didn't find anything as definitive architecturally as the Oxford Dictionary is for words, but raised patio seems to be a common term. There are many entries; I picked this one at random: How to Build a Raised Patio

Yours is beautiful.

Solution 2:

I reckon I'd ask my guests to join me on the bandstand.

Although, clearly, it cannot be a functioning bandstand as currently furnished, the OP says that "it could be a band stage", and it is a sociable location ("a conversation/fire pit area").

A fun, whimsical name, such as the bandstand seems more appropriate to the OP's request than anything more architecturally accurate.