Wamfan
Look at the top of the page. You can actually read "Dies Irae" on there. I have a copy of the same piece of work, and you can listen to the piece and follow the music. Whoever reverted the edition is making a mistake.
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If you have any questions please ask at Wikipedia:Media copyright questions. Thank you. Kevin (talk) 23:04, 8 July 2008 (UTC)