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
Rudolph, The Red-Nosed Reindeer	Gene Autry and the Pinafores			3:07	Rudolph, The Red-Nosed Reindeer (Single)	1949	E Standard	mute	1970-01-01
Ruin	Lamb Of God			3:57	As The Palaces Burn	2003	Drop D	mute	1970-01-01
Ruiner	Nine Inch Nails			4:58	The Downward Spiral	1994	E Standard	mute	1970-01-01
Rumors Of My Demise Have Been Greatly Exaggerated	Rise Against			4:17	Siren Song Of The Counter Culture	2004	Eb Standard	mute	1970-01-01
Rumpelkombo III	Alestorm			0:11	Sunset On The Golden Age	2014	C Standard	mute	1970-01-01
Run	Cog			5:09	The New Normal	2005	Custom Tuning	mute	1970-01-01
Run	Daughter			4:05	Smother	2012	E Standard	mute	1970-01-01
Run	Disturbed			3:14	The Lost Children	2011	D Drop C	mute	1970-01-01
Run For Cover	Blitz Kids			3:20	The Good Youth	2014	E Standard	mute	1970-01-01
Run For Cover	David Sanborn			6:11	Straight To The Heart	1984	E Standard	mute	1970-01-01
Run Like Hell	Pink Floyd			4:27	The Wall	1979	Drop D	mute	1970-01-01
Run Like Hell / Waiting for the Worms	Pink Floyd			5:09	The Wall	1982	Drop D	mute	1970-01-01
Run Run	Monoeyes			3:43	A Mirage In The Sun	2015	E Standard	mute	1970-01-01
Run Run Run	Shaka Ponk			3:57	The Geek and The Jerkin' Socks	2011	E Standard	mute	1970-01-01
Run Runaway	Slade			3:49	The Very Best of Slade	1983	E Standard	mute	1970-01-01