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
Prediction of Warfare	Amon Amarth			6:48	With Oden On Our Side	2006	B Standard	mute	1970-01-01
Profondo Rosso (Deep Red)	Goblin			3:50	Profondo Rosso	1975	E Standard	mute	1970-01-01
Promise Of Redemption	The Megas			2:54	Get Equipped	2008	E Standard	mute	1970-01-01
Psychopathy Red	Slayer			2:32	Psychopathy Red	2009	Eb Standard	mute	1970-01-01
Punctured	Annihilator			5:52	Criteria For A Black Widow	1999	Drop D	mute	1970-01-01
Pure Hatred	Chimaira			4:18	The Impossibility of Reason	2003	D Drop C	mute	1970-01-01
RED RIBBON	Emille's Moonlight Serenade			6:04	Red Ribbon	2018	Custom Tuning	mute	1970-01-01
RED ZONE	Janne Da Arc			4:14	DNA	2000	E Standard	mute	1970-01-01
RED...em	DIR EN GREY			5:04	VULGAR	2003	D Standard	mute	1970-01-01
REDO	The GazettE			3:53	Beautiful Deformity	2013	Custom Tuning	mute	1970-01-01
REDRUM	VAMPS			3:52	VAMPS	2009	Drop D	mute	1970-01-01
REPETITION OF HATRED	DIR EN GREY			4:35	THE MARROW OF A BONE	2007	Eb Drop Db	mute	1970-01-01
Raison Detre (Redone)	DIR EN GREY			4:49	GAUZE	1999	E Standard	mute	1970-01-01
Raped in Hatred by Vines	The Black Dahlia Murder			4:42	Everblack	2013	C Standard	mute	1970-01-01
Re-Wired	Kasabian			4:44	Velociraptor!	2011	E Standard	mute	1970-01-01