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
Right in Two	Tool			8:57	10000 Days	2006	Drop D	mute	1970-01-01
Rio Bravo	CKY	Combo		3:13	CKY - Vol 1	2000	D Standard	mute	1970-01-01
Rise of the Chaos Wizards	Gloryhammer			4:01	Space 1992: Rise of the Chaos Wizards	2015	D Standard	mute	1970-01-01
Ristiriita	Stam1na			3:31	Stam1na	2005	Custom Tuning	mute	1970-01-01
Robbers	The 1975			4:17	The 1975	2013	E Standard	mute	1970-01-01
Rock 'n' Roll Singer	AC/DC	Combo		5:07	T.N.T. - 1975	1975	E Standard	mute	1970-01-01
Rock And Roll Fantasy	Bad Company			3:19	Desolation Angels - 1979	1979	E Standard	mute	1970-01-01
Rocker	AC/DC			2:53	T.N.T. - 1975	1975	E Standard	mute	1970-01-01
Rockin' At Midnight	The Honeydrippers			6:00	The Honeydrippers Vol. 1	1984	E Standard	mute	1970-01-01
Rolling in the Deep	Adele			4:01	21	2010	E Standard	mute	1970-01-01
Romance About Tear	Epidemia			6:29	Elven Manuscript: Part 1	2004	Eb Standard	mute	1970-01-01
Rope	Domme	Bass2		2:43	TN01 EP	2018	B Drop A	mute	1970-01-01
Rosetta Stoned	Tool			15:03	10,000 Days	2006	Drop D	mute	1970-01-01
Rough Boy	ZZ Top			4:55	Afterburner - 1986	1986	E Standard	mute	1970-01-01
Rugrats Theme	Mark Mothersbaugh			0:56	100 Kids Party	1996	E Standard	mute	1970-01-01