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
Revenge of the zombie	Six Feet Under			2:52	Warpath	1997	D Standard	mute	1970-01-01
Revitalized	Painted In Exile			9:09	Revitalized	2009	D Drop C	mute	1970-01-01
Rezo por Vos	Charly García			4:32	Parte de la Religion	1987	E Standard	mute	1970-01-01
Rin! Rin! Hi! Hi! (TV Size)	Hashiguchi Kanaderiya hugs The Super Ball			1:31	Nanbaka OP	2016	E 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
Rize of the Fenix	Tenacious D			5:58	Rize of the Fenix	2012	E Standard	mute	1970-01-01
Rizzo in the Box	AFI			1:53	Answer That and Stay Fashionable	1995	E Standard	mute	1970-01-01
RnR za kucni savet	Riblja Corba			2:50	Kost u grlu	1979	E Standard	mute	1970-01-01
Robaczek	Kabanos			4:46	Zęby w Ścianę	2007	E Standard	mute	1970-01-01
Rock'n'Roll Zhestok	Alisa			4:37	Excess	2016	D Standard	mute	1970-01-01
Rocking The Boat (ft. Jeremy Schwartz)	Ice Nine Kills			4:14	The Silver Scream	2018	AEADG	mute	1970-01-01
Rose Quartz	Toro Y Moi			4:17	Anything in Return	2013	E Standard	mute	1970-01-01
Rossz vér	Deák Bill Gyula			7:47	Rossz vér	1983	E Standard	mute	1970-01-01
Rough Diamonds (TV Size)	Screen Mode			1:31	Shokugeki no Soma Season 2 OP	2016	E Standard	mute	1970-01-01
Rugan iz-za steny	Noize MC			3:47	Poslednii Albom	2010	E Standard	mute	1970-01-01