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
Regenerate	We Came As Romans			3:50	Regenerate	2015	Custom Tuning	mute	1970-01-01
Reggae Rock	Jackie Mittoo			2:00	Reggae Magic!	1972	E Standard	mute	1970-01-01
Reggatta de Blanc	The Police			3:06	Reggatta de Blanc	1979	E Standard	mute	1970-01-01
Regina Let's Go!	CPM 22			2:18	CPM 22	2001	E Standard	mute	1970-01-01
Regret And The Grave	Cattle Decapitation			4:42	The Harvest Floor	2009	Eb Standard	mute	1970-01-01
Regurgitated Disinformation	Job For A Cowboy			4:52	Ruination	2009	D Standard	mute	1970-01-01
Rehumanize Yourself	The Police			3:14	Ghost In The Machine	1981	E Standard	mute	1970-01-01
Rei -Paranoia-	Hallucination Aria			4:59	Toushou Hysteria	2019	Custom Tuning	mute	1970-01-01
Reignite	Killswitch Engage			3:03	Incarnate	2016	Drop D	mute	1970-01-01
Reindeer Age	Closure in Moscow			3:58	First Temple	2009	D Drop C	mute	1970-01-01
Reinkaos	Dissection			4:48	Reinkaos	2006	D Standard	mute	1970-01-01
Reino Olvidado	Rata Blanca			5:35	Reino Olvidado	2008	E Standard	mute	1970-01-01
Reject Emotions	Destruction			6:51	Mad Butcher	1986	E Standard	mute	1970-01-01
Reject Yourself	Killswitch Engage			4:50	As Daylight Dies	2006	D Drop C	mute	1970-01-01
Rejected	Rancid			2:16	Rancid	1993	E Standard	mute	1970-01-01