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
Rock Lobster	The B-52's			6:53	The B-52's	1978	Custom Tuning	mute	1970-01-01
Rock Lobster	The B-52's			6:52	The B-52's	1979	Custom Tuning	mute	1970-01-01
Rock On	311			3:33	Universal Pulse	2011	Custom Tuning	mute	1970-01-01
Rock This Country!	Shania Twain	Bass2		4:27	Come On Over	1997	Custom Tuning	mute	1970-01-01
Rodina	Louna			3:40	Divnyj Novyj Mir	2016	Custom Tuning	mute	1970-01-01
Roki	mikitoP - Calliope Mori			3:51	Roki	2021	Custom Tuning	mute	1970-01-01
Rollin'	Limp Bizkit			3:42	Chocolate Starfish and the Hot Dog Flavored Water	2000	Custom Tuning	mute	1970-01-01
Rollin' (ft. Senta)	Crystal Lake			3:48	Cubes	2014	Custom Tuning	mute	1970-01-01
Rollin' Rollin'	NEMOPHILA			3:55	REVIVE	2021	Custom Tuning	mute	1970-01-01
Rolling In The Deep	Amyst			3:52	Rolling In The Deep	2011	Custom Tuning	mute	1970-01-01
Romance Is Dead (S.O.F.'s Version)	Parkway Drive			5:23	Killing with a Smile	2005	Custom Tuning	mute	1970-01-01
Rondo of Nightmare	BABYMETAL			3:41	BABYMETAL	2015	Custom Tuning	mute	1970-01-01
Roots Bloody Roots	Sepultura			3:32	Roots	1996	Custom Tuning	mute	1970-01-01
Roots and Leaves	Aephanemer			7:23	A Dream of Wilderness	2021	Custom Tuning	mute	1970-01-01
Roots to Sever	Be'lakor			7:05	Vessels	2016	Custom Tuning	mute	1970-01-01