How to set default desired values in tag field

see e.g. here:

And then I wonder how often it will occur that an album has the same name or an artist - which is far easier to be solved with loading files that you already have by that artist and then use those as template.

In my collection I find hardly any artists that have more than 100 titles. And those that have are mostly dead so it is unlikely that that number will increase considerably which may make it worthwhile having a default value.

The general approach in MP3tag: create actions of the type "Format value" for the field and the value.