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
Undertow	Pain Of Salvation			4:56	Remedy Lane	2002	Drop D	mute	1970-01-01
Undertow	Tool			5:25	Undertow	1993	Drop D	mute	1970-01-01
Uneasy Hearts Weigh The Most (Tree City Sessions 2)	Dance Gavin Dance			4:14	Tree City Sessions 2	2020	Drop D	mute	1970-01-01
Uneasy Hearts Weigh the Most	Dance Gavin Dance			3:46	Dance Gavin Dance	2008	Drop D	mute	1970-01-01
Unforgiven	Creed			3:41	My Own Prison	1997	Drop D	mute	1970-01-01
Unforgiving	Alien Weaponry			7:10	Tangaroa	2021	Drop D	mute	1970-01-01
Unfuck The World	Prophets of Rage			4:10	Prophets of Rage	2017	Drop D	mute	1970-01-01
Unheavenly Creatures	Coheed and Cambria			4:18	Vaxis - Act I: Unheavenly Creatures	2018	Drop D	mute	1970-01-01
Unholy Confessions	Avenged Sevenfold			4:48	Waking The Fallen	2003	Drop D	mute	1970-01-01
Unilaulu	Kotiteollisuus			3:55	Iankaikkinen	2006	Eb Drop Db	mute	1970-01-01
United States	Smashing Pumpkins			9:55	Zeitgeist	2007	Eb Drop Db	mute	1970-01-01
Unity	TheFatRat			4:12	Unity	2014	Drop D	mute	1970-01-01
Unknown Civilization	Laur			4:12	The Angel's Message	2018	Drop D	mute	1970-01-01
Unknown Male 01	Biffy Clyro			6:08	The Myth of the Happily Ever After	2021	Drop D	mute	1970-01-01
Unknown Territory	Lowrater			3:08	Unknown Territory	2021	Drop D	mute	1970-01-01