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
Redemption - The Democracy Illusion	Mayan			6:10	Antagonise	2014	BEADG	mute	1970-01-01
Reduced To The Failure Of Prayer	Skeletonwitch			2:55	Forever Abomination	2011	E Standard	mute	1970-01-01
Reformation (Wrath Of The Old Gods)	Kiuas			6:15	Reformation	2006	D Drop C	mute	1970-01-01
Refrain Boy	ALL OFF			3:36	Mob Psycho 100 ED Single	2016	Eb Standard	mute	1970-01-01
Refrain Boy -English Ver.-	ALL OFF			3:36	Mob Psycho 100 ED Single	2016	Eb Standard	mute	1970-01-01
Regenerate	Fear Factory			4:05	Genexus	2015	Custom Tuning	mute	1970-01-01
Regenerate	We Came As Romans			3:50	Regenerate	2015	Custom Tuning	mute	1970-01-01
Regeneration	Stone Temple Pilots			4:03	Shangri-La Dee Da	2001	E Standard	mute	1970-01-01
Regret And The Grave	Cattle Decapitation			4:42	The Harvest Floor	2009	Eb Standard	mute	1970-01-01
Rei -Paranoia-	Hallucination Aria			4:59	Toushou Hysteria	2019	Custom Tuning	mute	1970-01-01
Reign Of The Tyrants	Jag Panzer			3:37	Ample Destruction	1984	Eb Standard	mute	1970-01-01
Rein Raus	Rammstein			3:13	Mutter	2001	D Standard	mute	1970-01-01
Relax (Backing Track)	Frankie Goes to Hollywood			3:53	Welcome To The Pleasuredome	1983	E Standard	mute	1970-01-01
Remembrance	Gojira			4:39	The Link	2007	D Standard	mute	1970-01-01
Remembrance Day	BIG COUNTRY			4:32	The Seer	1986	E Standard	mute	1970-01-01