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
Underneath the StarsThe Defiants5:15The Defiants2015Eb Standardmute1970-01-01
Underneath the WavesStrapping Young Lad3:45City1997D Drop Cmute1970-01-01
UnderratedAtreyu3:05Baptize2021D Drop Cmute1970-01-01
UnderstandAsian Kung-Fu Generation3:48Kimi Tsunagi Five M2003E Standardmute1970-01-01
Understanding Love as LossSilent Planet3:32Everything Was Sound2016Custom Tuningmute1970-01-01
Understanding SilenceGood Tiger3:36A Head Full of Moonlight2015E Standardmute1970-01-01
Understanding What We've Grown To BeWe Came As Romans4:27Understanding What We've Grown To Be2011Custom Tuningmute1970-01-01
Understanding in a Car Crash (Ramen's Ver)Thursday4:29Full Collapse2001Drop Dmute1970-01-01
UnderstatementNew Found Glory3:13Sticks and Stones2002E Standardmute1970-01-01
UndertakerAccept5:37Too Mean to Die2021E Standardmute1970-01-01
UndertaleToby Fox6:24Undertale OST2015E Standardmute1970-01-01
Undertale Main ThemeToby Fox/Isac Saleh4:01Undertale OST2018E Standardmute1970-01-01
Undertale MedleyToby Fox28:42Undertale Medley2015E Standardmute1970-01-01
Undertale Meets BassDavie5041:59Davie5042016E Standardmute1970-01-01
UndertowAs I Lay Dying3:59Shaped By Fire2019D Drop Cmute1970-01-01