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 GuillotineKreator4:41Pleasure To Kill1986D Standardmute1970-01-01
UnderstandAsian Kung-Fu Generation3:48Kimi Tsunagi Five M2003E Standardmute1970-01-01
Unforgettable Greenery of ConnectionZUN3:38Touhou 15: Legacy of Lunatic Kingdom OST2015E Standardmute1970-01-01
Unholy And RottenMidnight3:38Complete And Total Fucking Midnight2007Eb Standardmute1970-01-01
Unholy ConfessionsAvenged Sevenfold4:48Waking The Fallen2003Drop Dmute1970-01-01
UnilauluKotiteollisuus3:55Iankaikkinen2006Eb Drop Dbmute1970-01-01
Unmei no MukouHirakawachi 1-chome4:00Yukidoke No Koro Ni Todoku Tegami2007E Standardmute1970-01-01
UnravelTk from Ling Tosite Sigure1:30Tokio ghoul op2014E Standardmute1970-01-01
UnsaintedSlipknot4:23We Are Not Your Kind2019Custom Tuningmute1970-01-01
Unsympathetic IntellectRings of Saturn4:21Lugal Ki En2014Custom Tuningmute1970-01-01
Upon Ashen WingsUnleash The Archers5:16Defy The Skies2012Drop Dmute1970-01-01
Uptown Top RankingAlthea & Donna3:59Uptown Top Ranking (Single)1977E Standardmute1970-01-01
Use Your HeadOverkill4:22Taking Over1987E Standardmute1970-01-01
Ushinawareta Densetsu (Yume) wo MotometeAndy3:50Kikou Souseiki Mospeada Opening Theme1984E Standardmute1970-01-01
UzimakiBOKUNOPICONO1:19The Thrill of the Kill2020AEADGmute1970-01-01