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
Reign Of DreamsRivers Of Nihil3:22Monarchy2015Custom Tuningmute1970-01-01
Relentless ChaosMiss May I3:54Monument2010D Drop Cmute1970-01-01
Relentless ChaosMiss May I3:25Monument2010D Drop Cmute1970-01-01
RemedyThe Black Crowes5:26The Southern Harmony and Musical Companion1992Opend Gmute1970-01-01
Renai CirculationKana Hanazawa4:16Bakemonogatari OP4 Single2009E Standardmute1970-01-01
Richard IITitus Andronicus5:09The Monitor2009E Standardmute1970-01-01
Richard IIISupergrass3:11In It For The Money1997E Standardmute1970-01-01
Right Back At It AgainA Day To Remember3:24Common Courtesy2013D Drop Cmute1970-01-01
Ripe Seeds (Plant Castle)Hidehiro Funauchi1:26Castlevania II: Belmont's Revenge Soundtrack1991Drop Dmute1970-01-01
RiskDeftones3:41Diamond Eyes2010Custom Tuningmute1970-01-01
Robocop GayMamonas Assassinas3:02Mamonas Assassinas1995E Standardmute1970-01-01
Rock CandyMontrose5:09Montrose1973E Standardmute1970-01-01
Rock Me BabyJimi Hendrix Experience3:48Live at Monterey1986Eb Standardmute1970-01-01
Rock N RollSkrillex4:21Scary Monsters and Nice Sprites2010BEADGmute1970-01-01
Rock The NationMontrose3:06Montrose1973E Standardmute1970-01-01