Show off your theory chops with my weekly challenge! You’ll find a new question here every Monday. Please comment to post your reply.
This Week’s Challenge:
Below is an excerpt from a famous piece, but something’s been done to it. How has it been altered, and what is the name of the piece?

Post your reply and come back Friday, April 8th for the answer!
ANSWER for 4/4/22
Mirror, mirror on the wall. This is the fugue subject of J. S. Bach’s Toccata and Fugue in D minor, but with all its intervals inverted (upside down). Many melodies yield surprising results when shown their reflections! Though Bach didn’t explore the technique of inversion in this particular fugue, there are many others in which he did.
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