Conversation so far:
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
When did the band Symphony X take a break?
According to singer Russell Allen, the band Symphony X entered a short hiatus during 2017 in which they did not perform.
What was the reason for the band Symphony X's break?
The band Symphony X entered a short hiatus during 2017 due in part to singer Russell Allen's commitment to Adrenaline Mob.
Whose commitment from Symphony X was the reason for the band to take a break?
The band Symphony X entered a short hiatus during 2017 due in part to singer Russell Allen's commitment to Adrenaline Mob.
Did the band Symphony X tour for Underworld?
The band Symphony X entered a short hiatus during 2017 due in part to singer Russell Allen's commitment to Adrenaline Mob.
Are there any other interesting aspects about the Symphony X article?
It was announced in a January 2018 Metal Nation interview that Symphony X had plans to get together in the following months and begin writing a follow up to Underworld.
Did the band Symphony X release a follow up to Underworld?
In July 2018, according to Michael Romeo, Symphony X hopes to re-group and make another album.
Did Symphony X get back together?
In June 2019, Michael Romeo was considering to make Symphony X's tenth album after they're done touring in August 2019.

Question: What else can you tell me about their time apart?
Self-contained rewrite: What else can you tell me about Symphony X's time apart besides hoping to re-group and make another album?