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
R.O.C.K. in the U.S.A.	John Mellencamp			2:57	Scarecrow	1985	E Standard	mute	1970-01-01
R.O.C.K.S	Hound Dog			4:49	Naruto OST	1986	E Standard	mute	1970-01-01
RED...em	DIR EN GREY			5:04	VULGAR	2003	D Standard	mute	1970-01-01
ROCKSTAR (feat. Roddy Ricch)	DaBaby			3:04	BLAME IT ON BABY	2020	E Standard	mute	1970-01-01
Rain.Sun.Gone	Mudvayne			4:40	Lost and Found	2005	D Drop C	mute	1970-01-01
Rainy (feat. Declan Miers)	Rob Araujo			0:57	Loading... - EP	2017	E Standard	mute	1970-01-01
Raise Some Hell (Album Version) (b.alt)	lovebites			5:26	Electric Pentagram	2020	Drop D	mute	1970-01-01
Rapp Snitch Knishes (feat. Mr. Fantastik)	MF DOOM			2:57	MM...FOOD	2004	E Standard	mute	1970-01-01
Raspberry Patriot feat. Srezcat & DJ NECOJITA & Kobaryo	Shinonome Interface			3:28	SUPER REVOLUTION	2021	Custom Tuning	mute	1970-01-01
Raven's Flight (S.O.F.'s version)	Amon Amarth			5:27	Berserker	2019	Custom Tuning	mute	1970-01-01
Raw.Real.	Cherri Bomb			2:41	This is the End of Control	2012	E Standard	mute	1970-01-01
Re-Align (b.alt)	Godsmack			4:25	Faceless	2002	D Drop C	mute	1970-01-01
Re-Entry (ft. Mark Hoppus)	A Day To Remember			2:57	Re-Entry	2022	D Drop C	mute	1970-01-01
Real (ft. Tim Henson & Clay Gober)	Unprocessed			3:42	Real	2020	E Standard	mute	1970-01-01
Recipe for Hate... Warhorse	Megadeth			5:22	The World Needs A Hero	2001	E Standard	mute	1970-01-01