How to measure script efficiency?

Also having a script line number analysis is a very good idea.

I added the same feature to my Excel spreadsheet, and for the same album as in your screenshot, I got the following:

Numbering bugs not withstanding, having a visual representation of where certain lines/command are more frequent gives a much better idea of where to check if a script is too slow and it's hard to figure out where, and can be used as a benchmark between different scripts.

And while I do still think it is a good idea, the more I think about it, the more a command "weight" table becomes impractical. Normal script execution is already affected by system load, other processes, etc., so even if the developer were somehow able to create such a table, it would only be valid for their system. And besides, cover art file size has significantly more impact in execution time that any other commands.

I would still like to se a Total Commands Executed counter in the debug file; something I believe would not be difficult to implement.

As for the Notepad-Excel formatting issue mentioned in a previous post, it has nothing to do with Mp3Tag; and only happens when copying HTML code between the MS Notepad application and Excel (in my case). As a quick workaround, I now open the debug.txt file in a browser window, and from there I can copy/paste to Excel without issues.