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
Relativity	Prototype			4:52	Trinity	2002	D Standard	mute	1970-01-01
Remains of You	Six Feet Under			3:25	Haunted	1995	D Standard	mute	1970-01-01
Remembrance	Gojira			4:39	The Link	2007	D Standard	mute	1970-01-01
Remnants	Be'lakor			6:17	Of Breath And Bone	2012	D Standard	mute	1970-01-01
Remnants of Withered Decay	Malevolent Creation			4:01	The Ten Commandments	1991	D Standard	mute	1970-01-01
Requiem For Youth	Witchfinder General			4:32	Friends of Hell	1983	D Standard	mute	1970-01-01
Resilience	Aephanemer			5:59	Know Thyself	2014	D Standard	mute	1970-01-01
Resist	Rush			4:34	Test For Echo	1996	D Standard	mute	1970-01-01
Respect The Dead	Whiplash			3:13	Ticket To Mayhem	1987	D Standard	mute	1970-01-01
Rest Calm	Nightwish			7:08	Imaginaerum	2011	D Standard	mute	1970-01-01
Restitution	Marianas Rest			5:44	Ruins	2019	D Standard	mute	1970-01-01
Restless	40 Watt Sun			10:56	The Inside Room	2011	D Standard	mute	1970-01-01
Restless Heart Syndrome	Green Day			4:23	21st Century Breakdown	2009	D Standard	mute	1970-01-01
Return Of Salieri	Warmen			4:52	Accept the Fact	2005	D Standard	mute	1970-01-01
Return Of The Nemesis	Deathchain			3:29	Deathrash Assault	2005	D Standard	mute	1970-01-01