Digital music: Batch Editing id3 tags in DOS

Batch Editing id3 tags in DOS

Hi,
I have a few thousand mp3 files spread across a few hundred directories for which I wish to update the artist name. The issue is I don't want to use a GUI to select each of the files and update it as it will take too long.

I need a command or utility so I can change the artist with a DOS batch script

I can generate the full path to each of the files without any problem and dump it into a text file I can manipulate, so I was thinking of something like this example in order to change the artist to "Rattle" for for the first 3 files and then "von Karajan" for the last 3.

change artist "C:\Music\Beethoven\Symphonies\Fifth_01.mp3" "Rattle"
change artist "C:\Music\Beethoven\Symphonies\Fifth_02.mp3" "Rattle"
change artist "C:\Music\Beethoven\Symphonies\Fifth_03.mp3" "Rattle"
change artist "C:\Music\Beethoven\Symphonies\Ninth_01.mp3" "von Karajan"
change artist "C:\Music\Beethoven\Symphonies\Ninth_02.mp3" "von Karajan"
change artist "C:\Music\Beethoven\Symphonies\Ninth_03.mp3" "von Karajan"

Would be grateful for any suggestions.
Thanks,
Jack