ShredDB is an experimental .shred library, I removed the audio so it's pretty useless. You can find the source .psarc files here.

Song	Artist	Play	Shred	Length	Album	Year	Tuning	Uploader	Updated	Delete
Unknown To The I	Drab Majesty			4:11	Careless	2015	Custom Tuning	mute	1970-01-01
Unleash	Soulfly			5:13	Conquer	2008	C# Standard	mute	1970-01-01
Unlimited Taiwan	Chthonic			4:46	Mirrors of Retribution	2009	C Standard	mute	1970-01-01
Unlucky 13	DevilDriver			4:10	The Fury Of Our Maker's Hand	2005	Custom Tuning	mute	1970-01-01
Unravel (Tokyo Ghoul)	Tam Lu Music			4:17	Tokyo Ghoul	2015	Custom Tuning	mute	1970-01-01
Unraveling	Dir en Grey			4:47	The Unraveling	2013	Custom Tuning	mute	1970-01-01
Unraveling	Sevendust			3:59	Cold Day Memory	2010	Custom Tuning	mute	1970-01-01
Unreality	Harm's Way			2:31	Posthuman	2018	Custom Tuning	mute	1970-01-01
Unsainted	Slipknot			4:23	We Are Not Your Kind	2019	Custom Tuning	mute	1970-01-01
Unseen Terror	Unseen Terror			3:44	Human Error	1987	C Standard	mute	1970-01-01
Unsilent Death	Nails			2:46	Unsilent Death	2010	D Drop C	mute	1970-01-01
Unspoken	Frozen Crown	Bass2		4:13	Crowned In Frost	2019	Custom Tuning	mute	1970-01-01
Unstable	Adema			3:21	Unstable	2003	C Drop Ab	mute	1970-01-01
Unstable (feat. The Kid LAROI)	Justin Bieber			2:43	Justice	2019	Custom Tuning	mute	1970-01-01
Unstoppable	Ad Infinitum			4:18	Chapter II - Legacy	2021	Custom Tuning	mute	1970-01-01