Open any music folder. You are seeing something like this. In my example, the audio files are FLACs. But the setting is for all music folders. It's not specific to the file extension. I have Explorer in Details view, which I think you must have also.
![Default music folder](https://cdn.statically.io/img/i.sstatic.net/qDK8f.png)
Make whatever changes to the columns you want. In this example, I will just add the Size column. To do that, right click on a blank space in the column header row to show the columns context menu:
![Columns context menu](https://cdn.statically.io/img/i.sstatic.net/yDR5v.png)
Select Size on the columns context menu. You should now see the Size column:
![Music folder with size column](https://cdn.statically.io/img/i.sstatic.net/v1cAw.png)
To open the folder options dialog, click the three dots above the column header row and select Options from the menu.
![Open Folder Options dialog](https://cdn.statically.io/img/i.sstatic.net/LPgKY.png)
In the folder options dialog, select the View tab and click the Apply to Folders button:
![Folder Options - Apply to Folders](https://cdn.statically.io/img/i.sstatic.net/Ee20H.png)
You will get a message box question 'Do you want all folders of this type to match this folder's view settings?'. Answer Yes to that. Then click OK on the Folder Options dialog.
And that's it. To check whether it worked, have a look at another music folder:
![Size shown for another music folder](https://cdn.statically.io/img/i.sstatic.net/o5dkH.png)