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
Randy, I Am The Liquor	Free Throw			3:09	Bear Your Mind	2017	Custom Tuning	mute	1970-01-01
Rango II	Vulfpeck			4:12	Thrill of the Arts	2015	E Standard	mute	1970-01-01
Rank-N-File	Anti-Flag			3:46	The Terror State	2003	Eb Standard	mute	1970-01-01
Ranking Full Stop	The Beat			2:47	I Just Can't Stop It	1980	E Standard	mute	1970-01-01
Ransom	blink-182			1:28	NINE	2019	E Standard	mute	1970-01-01
Re-arranged	Limp Bizkit			4:43	Significant Other	1999	C# Standard	mute	1970-01-01
Rearrange	Miles Kane			3:34	Colour of the Trap	2011	E Standard	mute	1970-01-01
Red Orange Yellow	The Photo Atlas			3:08	No, Not Me, Never	2007	E Standard	mute	1970-01-01
Rei -Paranoia-	Hallucination Aria			4:59	Toushou Hysteria	2019	Custom Tuning	mute	1970-01-01
Reign Of The Tyrants	Jag Panzer			3:37	Ample Destruction	1984	Eb Standard	mute	1970-01-01
Remembrance	Gojira			4:39	The Link	2007	D Standard	mute	1970-01-01
Remembrance Day	BIG COUNTRY			4:32	The Seer	1986	E Standard	mute	1970-01-01
Remembrance of Things Past	Ved Buens Ende			8:59	Written in Waters	1995	E Standard	mute	1970-01-01
Remembrances	Koichi Sugiyama			2:54	Dragon Quest VIII	2004	E Standard	mute	1970-01-01
Revenge Of The Nameless Ranger	Modern Baseball			2:36	MoBo Presents The Perfect Cast EP 2015	2014	Eb Standard	mute	1970-01-01