I like light music very much.

我非常喜欢轻音乐。

I prefer relatively light music.

我喜欢比较柔和的音乐。

I like listening to light music.

我喜欢听轻音乐。

Let's have some light music.

要听听轻音乐。

How about some light music?

来点轻音乐如何？