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
RPGSchool Food Punishment4:07Prog-Roid2011Drop Dmute1970-01-01
RUMBLEVAMPS3:33BEAST2010Drop Dmute1970-01-01
RUNB'z3:56RUN1992Drop Dmute1970-01-01
Rabbit HoleBlink1822:36California2016Drop Dmute1970-01-01
RabotaRychagi Mashyn3:09Imperiya Dobra2012Drop Dmute1970-01-01
Race You To The BottomNew Medicine3:03Race You To The Bottom2010Drop Dmute1970-01-01
Race wishHIZAKI4:44Rosario2016Eb Drop Dbmute1970-01-01
Radian ArkhamDiscordance Axis1:24The Inalienable Dreamless2000Drop Dmute1970-01-01
Radio HiveWeatherbox3:50Flies In All Directions2014Eb Drop Dbmute1970-01-01
Radio/VideoSystem of a Down4:13Mezmerize2005Eb Drop Dbmute1970-01-01
RadiocomaZavtra Broshu2:39Single2016Drop Dmute1970-01-01
Radium Eyes (GH2 Mix)Count Zero3:36Guitar Hero 22006Drop Dmute1970-01-01
RageAttila3:38Rage2010Eb Drop Dbmute1970-01-01
Rage Your DreamM.O.V.E.4:38Initial D Final Best Collection1998Drop Dmute1970-01-01
RainTrivium4:16Ascendancy2005Drop Dmute1970-01-01