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
Redneck StompObituary3:34Frozen In Time2005D Standardmute1970-01-01
RedoKonomi Suzuki4:21Re:Zero OP2016E Standardmute1970-01-01
Reign Of TerrorRhapsody Of Fire6:52The Frozen Tears of Angels2010E Standardmute1970-01-01
Requiem of SilenceSuehiro Kenichirou7:06Re:Zero Soundtrack2016E Standardmute1970-01-01
Rescue MeZebrahead3:22MFZB2003E Standardmute1970-01-01
ResolutionMattyyyM4:48SAO: Alicization-War of Underworld OP MattyyyM Cover2019E Standardmute1970-01-01
Rest In Pain (R.I.P.)Sepultura4:41Schizophrenia1987E Standardmute1970-01-01
Revelation (Mother Earth)Ozzy Osbourne6:11Blizzard of Ozz1980E Standardmute1970-01-01
RevengaSystem of a Down3:51Mezmerize2005Eb Drop Dbmute1970-01-01
RevitalizedPainted In Exile9:09Revitalized2009D Drop Cmute1970-01-01
ReviveThe Devil Wears Prada4:59Zombie2010Custom Tuningmute1970-01-01
Right Wing PigeonsThe Dead MilkmenBass2 2:24Big Lizard in My Backyard1985E Standardmute1970-01-01
Rikki Don't Lose That NumberSteely Dan4:35Pretzel Logic1974E Standardmute1970-01-01
RilkeOrganek4:14Czarna Madonna2016E Standardmute1970-01-01
Rimsky-Korsakov's Flight of the Bumblebee (No Bass)Paul Henry Smith & The Fauxharmonic Orchestra1:22Classical Frenzies2009E Standardmute1970-01-01