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
U.N. Owen Was Her?	UNDEAD CORPORATION			0:55	TOHO COMPLETE BOX	2013	Custom Tuning	mute	1970-01-01
U.S.A. For U.S.A.	Carnivore			3:23	Retaliation	1987	C# Standard	mute	1970-01-01
UFO Lighter	Camp Cope			4:34	How To Socialize & Make Friends	2018	E Standard	mute	1970-01-01
UNDO	Cool Joke			4:10	Full Metal Alchemist OP3 Single	2004	E Standard	mute	1970-01-01
UNION (GRIDMAN OP)	OxT (Masayoshi Oishi x Tom-Hck)			1:32	REUNION	2020	Eb Standard	mute	1970-01-01
Ueban	Rychagi Mashyn			3:06	Poletaem	2012	Drop D	mute	1970-01-01
Ugly	Children Of Bodom			4:15	Relentless Reckless Forever	2011	D Drop C	mute	1970-01-01
Ugly	Nicole Dollanganger			3:44	Ode to Dawn Wiener: Embarrassing Love Songs	2013	E Standard	mute	1970-01-01
Ugoku, Ugoku	Chito (CV: Inori Minase), Yuuri (CV: Yurika Kubo)			4:39	Ugoku, Ugoku	2017	E Standard	mute	1970-01-01
Uh Huh	Julia Michaels			3:02	Nervous System	2017	E Standard	mute	1970-01-01
Uh, Zoom Zip	Soul Coughing	Bass2		4:01	Ruby Vroom	1994	E Standard	mute	1970-01-01
Ulan	Cueshé			5:12	Half Empty, Half Full	2005	E Standard	mute	1970-01-01
Ultimate (BASS BOOSTED)	Denzel Curry			0:28	Memes	2015	E Standard	mute	1970-01-01
Ultimate Antichrist	Massacra			3:45	Enjoy The Violence	1991	Eb Standard	mute	1970-01-01
Ultra Blue	Thrice			3:04	Identity Crisis	2000	E Standard	mute	1970-01-01