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
The RelicSymphony X5:08Twilight in Olympus1998D Standardmute1970-01-01
The ReticentInsomnium4:36Argent Moon - EP2021D Standardmute1970-01-01
The RevelationSerenity in Murder3:41The Eclipse2017D Standardmute1970-01-01
The Revenge of Surf Queen9mm Parabellum Bullet3:04VAMPIRE2008E Standardmute1970-01-01
The Revolution Will Not Be TelevisedGil Scott-Heron3:14Pieces Of A Man1971E Standardmute1970-01-01
The Rider From IceEpidemia5:14Elfiyskaya rukopis2004Eb Standardmute1970-01-01
The Ring in ReturnCoheed and Cambria2:10In Keeping Secrets of Silent Earth: 32003E Standardmute1970-01-01
The Ripple EffectAuras3:25Heliospectrum2016Custom Tuningmute1970-01-01
The Rising TideJob For A Cowboy4:47Doom EP2005Custom Tuningmute1970-01-01
The RiverWage War3:51Blueprints2015Custom Tuningmute1970-01-01
The Road Back HomeThe Flower Kings9:00Retropolis1996E Standardmute1970-01-01
The Robot With Human Hair pt.4Dance Gavin Dance3:36Acceptance Speech 2.02019E Standardmute1970-01-01
The RockThe Who6:45Quadrophenia1973Eb Standardmute1970-01-01
The Rock Showblink-1822:56Take Off Your Pants and Jacket2001E Standardmute1970-01-01
The RollerBeady Eye3:40Different Gear, Still Speeding2011E Standardmute1970-01-01