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
Requiem for the Indifferent	Epica			8:36	Requiem for the Indifferent	2012	B Standard	mute	1970-01-01
Requiem for the Living	Jeff Loomis			5:01	Requiem for the Living	2013	Eb Standard	mute	1970-01-01
Rescue Me	Fontella Bass			2:56	The New Look	1965	E Standard	mute	1970-01-01
Resident Evil Main Theme	Marilyn Manson			2:12	Resident Evil: Music From And Inspired By The Original Motion Picture	2002	E Standard	mute	1970-01-01
Resistance	Muse			5:46	The Resistance	2009	E Standard	mute	1970-01-01
Resonance	Insomnium			2:34	Since The Day It All Came Down	2004	E Standard	mute	1970-01-01
Respect	Aretha Franklin			2:30	I Never Loved a Man the Way I Love You	1967	E Standard	mute	1970-01-01
Respect for the Dead	Beneath The Sky			5:41	The Day The Music Died	2008	C Standard	mute	1970-01-01
Responsibility	MxPx			2:43	The Everlasting Moment	2000	E Standard	mute	1970-01-01
Restless	40 Watt Sun			10:56	The Inside Room	2011	D Standard	mute	1970-01-01
Restless Gypsy	W.A.S.P.			5:02	Inside the Electric Circus	1987	Eb Standard	mute	1970-01-01
Restless Nights	Bruce Springsteen			3:50	The Ties That Bind: The River Collection	1980	E Standard	mute	1970-01-01
Restless(Acoustic)	40 Watt Sun			7:01	The Inside Room-EP	2011	C Standard	mute	1970-01-01
Resurgence of Hate	Hateplow			3:49	The Only Law Is Survival	2000	B Standard	mute	1970-01-01
Resurrect With A Vengeance	HateSphere			4:20	The Great Bludgeoning	2011	C Standard	mute	1970-01-01