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
RC's Mom	The Dead Milkmen	Bass2		2:28	Beelzebubba	1988	E Standard	mute	1970-01-01
RESISTER	ASCA			3:51	Sword Art Online Alicization OP	2019	E Standard	mute	1970-01-01
ROZEN HORIZON	Roselia			6:15	ROZEN HORIZON	2022	Drop D	mute	1970-01-01
Rabota	Alisa			3:41	Tverdii Znak	2010	D Standard	mute	1970-01-01
Radical Change	Tremonti			4:33	Cauterize	2015	C# Standard	mute	1970-01-01
Radio/Video	System of a Down			4:13	Mezmerize	2005	Eb Drop Db	mute	1970-01-01
Raging Starfire	Rhapsody Of Fire			5:00	The Frozen Tears of Angels	2010	E Standard	mute	1970-01-01
Rain	Vinnie Moore			4:34	The Maze	1999	E Standard	mute	1970-01-01
Rainbow Demon	Uriah Heep			4:30	Demons and Wizards	1972	E Standard	mute	1970-01-01
Raingods Dancing	Fish			4:19	Raingods With Zippos	1999	E Standard	mute	1970-01-01
Raison Detre (Redone)	DIR EN GREY			4:49	GAUZE	1999	E Standard	mute	1970-01-01
Ramble On	Led Zeppelin			4:12	Led Zeppelin II	1969	E Standard	mute	1970-01-01
Ramblin' Man	Lemon Jelly			7:06	Lost Horizons	2002	E Standard	mute	1970-01-01
Rammstein	Rammstein			4:25	Herzeleid	1995	E Standard	mute	1970-01-01
Rastabilly	The Dead Milkmen	Bass2		1:11	Big Lizard in My Backyard	1985	E Standard	mute	1970-01-01