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
Raining BloodSlayerCombo 4:12Reign in Blood2002Eb Standardmute1970-01-01
Raise Your FlagMAN WITH A MISSION4:07Mobile Suit Gundam: Iron-Blooded Orphans OP Single2015Drop Dmute1970-01-01
Ready to GoMary's Blood4:32Bloody Palace2015E Standardmute1970-01-01
Reason To BelieveSum 413:28Screaming Bloody Murder2011D Standardmute1970-01-01
RebornSlayer2:14Reign In Blood1986Eb Standardmute1970-01-01
Regurgitated GutsDeath3:47Scream Bloody Gore1987D Standardmute1970-01-01
Reincarnated Soul (Rock Version)Yasushi Asada3:37Castlevania Bloodlines (Sega Genesis)1993E Standardmute1970-01-01
Repeater (or For All is Dark Where Thou Art Not)Shagohod6:58Tin, Gold, Lead & Blood2021E Standardmute1970-01-01
Revolver (or Gravedigger Blues)Shagohod5:06Tin, Gold, Lead & Blood2021E Standardmute1970-01-01
Ride the WindPoison3:54Flesh & Blood1990Eb Standardmute1970-01-01
River's SoulThe WarningCombo 4:17XXI Century Blood2017E Standardmute1970-01-01
Roadkill MorningChildren Of Bodom3:39Blooddrunk2008D Standardmute1970-01-01
Roid RageRed Vox2:37Blood Bagel2016E Standardmute1970-01-01
Rose TattooDropkick Murphys5:08Signed and Sealed in Blood2013E Standardmute1970-01-01
Rose of PainX Japan11:50Blue Blood1989Eb Standardmute1970-01-01