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
Roe v World	War on Women			2:02	War on Women	2015	Eb Drop Db	mute	1970-01-01
Rogues Do It From Behind	Elite Tauren Chieftain			3:46	World of Warcraft	2007	E Standard	mute	1970-01-01
Rooftop Engagement	Stuart Chatwood			2:19	Prince Of Persia Warrior Within	2004	Drop D	mute	1970-01-01
Rubicon Artist	Intervals			4:45	The Way Forward	2017	BEADG	mute	1970-01-01
Rubicon Artist	Intervals			4:42	The Way Forward	2017	Custom Tuning	mute	1970-01-01
Ruined Ends	Wovenwar			4:01	Wovenwar	2014	Eb Drop Db	mute	1970-01-01
Ruiner	Nine Inch Nails			4:58	The Downward Spiral	1994	E Standard	mute	1970-01-01
Run Run Run	AKB48			3:48	Himawarigumi 1st Stage	2008	E Standard	mute	1970-01-01
Run You	The Qemists			4:21	Warrior Sound	2016	Drop D	mute	1970-01-01
SHIORI	ClariS			4:13	Owarimonogatari 2nd Season ED	2017	E Standard	mute	1970-01-01
SLOW DOWN!	Maboroshi			3:54	The Warudakumi	2004	E Standard	mute	1970-01-01
STAND YOUR GROUND	WAR OF AGES			4:09	WAR OF AGE	1980	D Drop C	mute	1970-01-01
Sapari	Orphaned Land			4:03	Never Ending Way of ORwarriOR Tour Edition Disc 1	2010	Custom Tuning	mute	1970-01-01
Sarajevo	Sabaton			4:46	The War To End All Wars	2022	Custom Tuning	mute	1970-01-01
Save The Human Race	Shah			5:25	Beware	1989	E Standard	mute	1970-01-01