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
Undress to Confess ft. Matteo Vdiva Fabbiani	Powerwolf			3:31	Missa Cantorem II	2022	Custom Tuning	mute	1970-01-01
Undressed	Tiamat			7:11	Clouds	1992	D Standard	mute	1970-01-01
Undun	The Guess Who			3:27	Canned Wheat	1969	E Standard	mute	1970-01-01
Undying	Prototype			2:47	Continuum	2006	D Standard	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
Unemployed in Summertime	Emiliana Torrini			3:51	Love in the Time of Science	1999	E Standard	mute	1970-01-01
Unfit Earth	Napalm Death			5:07	Harmony Corruption (Remastered)	2012	D Standard	mute	1970-01-01
Unfit for human consumption	Carcass			4:34	Surgical Steel	2013	B Standard	mute	1970-01-01
Unforgettable Greenery of Connection	ZUN			3:38	Touhou 15: Legacy of Lunatic Kingdom OST	2015	E Standard	mute	1970-01-01
Unfound Mortality	Benediction			3:49	Transcend The Rubicon	1993	D Standard	mute	1970-01-01
Unfunky UFO	Parliament			4:28	Mothership Connection	1975	E Standard	mute	1970-01-01
Unhallowed	Yuki Kajiura	Bass2		1:30	Le Portrait de Petit Cossette	2004	Custom Tuning	mute	1970-01-01
Unheavenly Creatures	Coheed and Cambria			4:18	Vaxis - Act I: Unheavenly Creatures	2018	Drop D	mute	1970-01-01
Unholy And Rotten	Midnight			3:38	Complete And Total Fucking Midnight	2007	Eb Standard	mute	1970-01-01