This a complication featuring the antagonist Argalia (from Library of Ruina) and his Reverberation Ensemble (ranging Reverb Ensemble's BGM from old to current)

The Reverberation Ensemble Redux

GGST and more

Cello, harp, drum, french horn, tuba and trombone

less go, uptated reverb gang ost 

not mine
(art dunno by who)

Library of Ruina - Reverberation Asiyah

Clarinet, viola and violin

best reverb gang ost for me btw

art by: Ira (pixiv id 4189006)
not mine

Library of Ruina - Reverberation Briah

2. Find Your One Way - Guilty Gear Strive OST (Sol Badguy Theme)

3. The Roar of the Spark - Guilty Gear Strive OST (Ky Kiske Theme)

4. The Disaster of Passion - Guilty Gear Strive OST (May Theme)

By Studio EIM

This is the different version to the previous one.
However, both Asiyah and Briah were slightly changed except Atziluth

Original Song: https://www.youtube.com/watch?v=QWju6Ab241I

Library of Ruina - The Reverberation Ensemble Distorted (alternative version)

That Person's Name Is - Bravely Default

Holy Orders (Be Just Or Be Dead)

[Library of Ruina] Reverberation Asiyah (OLD)

[Library of Ruina] Reverberation Briah (OLD)

[Library of Ruina] The Reverberation Ensemble (OLD)

"Mankind, you are an ignorant race. How foolish it is to believe your kind rules the Earth. Know now that your are not alone, there are unseen worlds that exist parallel to yours. These are the worlds of the Makai, a race of demons. And the Jujinkai, those that are half-man and half-beast. There is an ancient legend, a prophecy fortelling the appearance of a super being every three thousand years. He is called the Chojin! A god above all gods, the Overfiend! The Chojin will appear through the body of a human and with his great power he will unite the three worlds. He will create a new world, a world of peace and harmony. His time has now come! Ignorant humans, the truth has now being revealed"

Guy that likes listening to music a lot

._.XD

Library of Ruina - The Reverberation Ensemble Distorted (alternative version)

skytalk