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
Under The Sin Of GriefBlood Stain Child5:44Silence of Northern Hell2002D Standardmute1970-01-01
Under This FlagGod Forbid5:48IV: Constitution of Treason2005D Drop Cmute1970-01-01
Under the SurfaceNeurosis8:47Times Of Grace1999Custom Tuningmute1970-01-01
Understanding SilenceGood Tiger3:36A Head Full of Moonlight2015E Standardmute1970-01-01
Underwater GardenSepticflesh6:51Mystic Places Of Dawn1994D Standardmute1970-01-01
Undress to ConfessPowerwolf3:31Call of the Wild2021Custom Tuningmute1970-01-01
Unemployed in SummertimeEmiliana Torrini3:51Love in the Time of Science1999E Standardmute1970-01-01
UnforgettableONE OK ROCK3:19Eye Of The Storm2019E Standardmute1970-01-01
Unforgettable Greenery of ConnectionZUN3:38Touhou 15: Legacy of Lunatic Kingdom OST2015E Standardmute1970-01-01
Unfuck The WorldProphets of Rage4:10Prophets of Rage2017Drop Dmute1970-01-01
Unholy Magic AttackInquisition5:50Into the Infernal Regions of the Ancient Cult1998D Standardmute1970-01-01
Unholy WarAtheist2:21Piece Of Time1989E Standardmute1970-01-01
Unholy WarcryRhapsody5:56Symphony Of Enchanted Lands II: The Dark Secret2004E Standardmute1970-01-01
Union (Slopes of St. Benedict)Sabaton4:08The Art of War2008E Standardmute1970-01-01
United States of HorrorHo99o94:23United States Of Horror2017E Standardmute1970-01-01