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 Remedy	Polaris			4:09	The Mortal Coil	2017	Custom Tuning	mute	1970-01-01
The Resurgent	The Arusha Accord			3:30	The Echo Verses	2009	Custom Tuning	mute	1970-01-01
The Return of Agent Embryo	Nuclear Rabbit			2:38	Intestinal Fortitude	2011	Custom Tuning	mute	1970-01-01
The Revanchist	Trivium			7:20	The Sin and the Sentence	2017	Custom Tuning	mute	1970-01-01
The Revanchist	Trivium			7:20	The Sin and the Sentence	2017	Custom Tuning	mute	1970-01-01
The Rich Man	Roadrunner United			6:53	All-Star Sessions	2005	Custom Tuning	mute	1970-01-01
The Riddle	Gigi D'Agostino			4:55	L'Amour Toujours	1999	Custom Tuning	mute	1970-01-01
The Right To Go Insane	Megadeth			4:22	Endgame	2009	Custom Tuning	mute	1970-01-01
The Ripple Effect	Auras			3:25	Heliospectrum	2016	Custom Tuning	mute	1970-01-01
The Rising Tide	Job For A Cowboy			4:47	Doom EP	2005	Custom Tuning	mute	1970-01-01
The River	Parkway Drive			5:30	Atlas	2012	Custom Tuning	mute	1970-01-01
The River	Wage War			3:51	Blueprints	2015	Custom Tuning	mute	1970-01-01
The River Dragon Has Come	Nevermore			5:10	Dead Heart in a Dead World	2000	Custom Tuning	mute	1970-01-01
The River Ov Knives	Worm Shepherd			5:17	Ritual Hymns	2022	Custom Tuning	mute	1970-01-01
The Road To Hell	Chris Rea			4:28	The Road To Hell	1989	Custom Tuning	mute	1970-01-01