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
Outlive The Hand	Be'lakor			8:44	Stone's Reach	2009	Drop D	mute	1970-01-01
Rain Wizard	Black Stone Cherry			3:27	Black Stone Cherry	2007	Eb Drop Db	mute	1970-01-01
Raven Land	Lake of Tears			5:41	Headstones	1995	D Standard	mute	1970-01-01
Reached Out	Stone			3:52	Stone	1988	E Standard	mute	1970-01-01
Real Delusion	Stone			4:15	Stone	1988	E Standard	mute	1970-01-01
Regular John	Queens of the Stone Age			4:53	Queens of the Stone Age	1998	C Standard	mute	1970-01-01
Rhinestone Cowboy	Glen Campbell			3:13	Rhinestone Cowboy	1975	E Standard	mute	1970-01-01
Road Hogs	Stone Sour			3:53	Stone Sour	2002	Custom Tuning	mute	1970-01-01
Rollin On	Black Stone Cherry			5:39	Black Stone Cherry	2006	Eb Drop Db	mute	1970-01-01
Rolling Wheels	Running Wild			5:42	Blazon Stone	1991	E Standard	mute	1970-01-01
Route 66	The Rolling Stones			2:24	The Rolling Stones	1964	E Standard	mute	1970-01-01
Sail Into The Black	Machine Head			8:30	Bloodstone & Diamonds	2014	Custom Tuning	mute	1970-01-01
Sail into the Black (b.alt)	Machine Head			8:29	Bloodstone and Diamonds	2014	C# Drop B	mute	1970-01-01
She Bangs the Drums	The Stone Roses	Bass2		3:45	The Stone Roses UK	1989	E Standard	mute	1970-01-01
Shoot You Down	The Stone Roses			4:14	The Stone Roses UK	1989	E Standard	mute	1970-01-01