Why use が in the sentence below?


Why use が in the sentence below? Would を be equally correct?

> このピアノはとてもいい音 **が** します。




The structure of Japanese in SOV, on the other hand English's is SVO.

If here you take the particle を，piano would become the object, and

> はとてもいい音がします。

mening, in English "has very good tunes".

So if you put the を instead Object comes first, that would sound strange,
instead the particle は needs to come to make the Subject.

Thanks.

