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
READY STEADY GO (Cover)	Afterglow			3:48	BanG Dream! Girls Band Party! Cover Collection Vol.1	2018	E Standard	mute	1970-01-01
REASON	Syu (From Galneryus) Feat. Fuki			5:29	Vorvados	2019	Eb Standard	mute	1970-01-01
RED...em	DIR EN GREY			5:04	VULGAR	2003	D Standard	mute	1970-01-01
REDRUM	VAMPS			3:52	VAMPS	2009	Drop D	mute	1970-01-01
RING	B'z			4:02	ELEVEN	2000	E Standard	mute	1970-01-01
RUN!	Sophus Alf Agerbæk-Larsen	Bass2		2:38	Deep Rock Galactic - Original Soundtrack Volume II	2020	Custom Tuning	mute	1970-01-01
RWBY - Time To Say Goodbye	Jeff Williams			3:24	RWBY Volume 2 Soundtrack	2014	E Standard	mute	1970-01-01
Raabjørn Speiler Draugheimens Skodde	Dimmu Borgir			5:07	Godless Savage Garden	1998	E Standard	mute	1970-01-01
Rabota	Alisa			3:41	Tverdii Znak	2010	D Standard	mute	1970-01-01
Rachael	She Wants Revenge			4:30	This is Forever	2007	E Standard	mute	1970-01-01
Radiation Sickness	Nuclear Assault			2:52	Game Over	1986	E Standard	mute	1970-01-01
Radio	NOFX			2:55	they've actually gotten worse	2007	E Standard	mute	1970-01-01
Radio Girl	Volbeat			3:47	Rock the Rebel/Metal the Devil	2007	D Standard	mute	1970-01-01
Radio Pirata - Backing Track	RPM			3:35	Revoluções Por Minuto	1985	E Standard	mute	1970-01-01
Radio Shack	Vulfpeck			3:23	Vulf Vault: Inside the Mind of Woody Goss	2019	E Standard	mute	1970-01-01