Put artist, album and title of an audio file into variables

I want it extract this information of the ID3 tag of an audio file and save the text in a variable with the "@set" action. How can I do this? Thanks.

What do you want to do with the information once its in the variables?

I want copy the audio file in x:\artist variable\album variable\audio file and so on

The easiest way to do that is to copy the files as-is (assuming you don't want to move/rename the originals), then use Opus's Rename tool to move them into the desired directory structure.

There's an example of this here. The new name can form an absolute path if you need it to. For example, X:{mp3artist}{mp3album}{mp3title}

If you just want to organise the files without copying them, you can skip the copy stage and use the rename tool directly.