what grass is this we lie upon?

Today I saw some intro about the light music of Lin, Hai. Lin hai is a Chinese musician, mainly on piano playing.
The album was called: moonlight frontier.
I like it at the moment I hear the entro part.

It is soft and smooth, like walking in a garden or in the forest, bathing in the moonlight, with spring breeze all over.

It is a good experience, relaxing and soothing.
here is the link: http://web.wenxuecity.com/BBSView.php?SubID=music&MsgID=206621