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What was Symphony X's underworld?
Underworld is the ninth studio album by American progressive metal band Symphony X.
When was Symphony X's underworld album released?
Symphony X's Underworld was released on July 24, 2015 through Nuclear Blast.
How was Symphony X's underworld album received?
Symphony X's Underworld received 4 stars from AllMusic

Question: When did the band take a break?
Self-contained rewrite: When did the band Symphony X take a break?