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
REAL EXISTENCEBAND-MAID4:10New Beginning2015Drop Dmute1970-01-01
REDOThe GazettE3:53Beautiful Deformity2013Custom Tuningmute1970-01-01
RESISTANCECELICA4:45beatmania IIDX 19 Lincle ORIGINAL SOUNDTRACK2012E Standardmute1970-01-01
REVOLUTIONVAMPS4:44BEAST2010Drop Dmute1970-01-01
ROCK-mode'18LiSA5:32LiSA BEST -Way-2018Eb Standardmute1970-01-01
RUMBLEVAMPS3:33BEAST2010Drop Dmute1970-01-01
Rabbits Are Roadkill On Rt. 37AFI3:48Decemberunderground1511Eb Standardmute1970-01-01
RadioAlkaline Trio4:47Maybe I'll Catch Fire2000E Standardmute1970-01-01
Radio GirlVolbeat3:47Rock the Rebel/Metal the Devil2007D Standardmute1970-01-01
Radio RebeldeBaboon Show3:35Radio Rebelde2018E Standardmute1970-01-01
Radio WonderfulAndy Lewis3:32You Should Be Hearing Something Now2007E Standardmute1970-01-01
Radix MalorumGorgoroth3:17Instinctus Bestialis2015C# Standardmute1970-01-01
Rage Your DreamM.O.V.E.4:38Initial D Final Best Collection1998Drop Dmute1970-01-01
RagooKings of Leon3:04Because of the Times2007E Standardmute1970-01-01
RainDragon3:33Body and the Beat1984E Standardmute1970-01-01