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
Red, White & Blue	Lynyrd Skynyrd			5:38	Vicious Cycle	2003	Eb Standard	mute	1970-01-01
Reflection Room	INVENT ANIMATE			3:55	Greyview	2020	AEADG	mute	1970-01-01
Regorge in the Morgue	Vomitory			2:36	Opus Mortis VIII	2011	D Standard	mute	1970-01-01
Reign Of Terror	Sabaton			3:54	Primo Victoria	2005	E Standard	mute	1970-01-01
Reino Olvidado	Rata Blanca			5:35	Reino Olvidado	2008	E Standard	mute	1970-01-01
Rejection	40 Below Summer			4:03	Invitation to the Dance	2001	C# Drop B	mute	1970-01-01
Relief	Sixx AM			4:24	Modern Vintage	2014	Drop D	mute	1970-01-01
Remembrances	Koichi Sugiyama			2:54	Dragon Quest VIII	2004	E Standard	mute	1970-01-01
Reminiscence	With Different Eyes			3:49	Inevitable	2016	Custom Tuning	mute	1970-01-01
Remove Your Mask	Wolfmother			4:00	Victorious	2016	E Standard	mute	1970-01-01
Requiem for the Living	Jeff Loomis			5:01	Requiem for the Living	2013	Eb Standard	mute	1970-01-01
Required Malfunction	The GazettE			4:10	DIVISION	2012	B Drop A	mute	1970-01-01
Resident Evil 2 - Scenario B Ending Theme	Capcom			2:38	Resident Evil 2 OST	1998	Custom Tuning	mute	1970-01-01
Resident Evil 2 Claire B Credits	Ueda, Uchiyama, Nishigaki			2:38	Resident Evil 2 OST	1998	Custom Tuning	mute	1970-01-01
Resident Evil 2 Ending Theme B	Masami Ueda			2:37	Resident Evil 2 OST	1998	E Standard	mute	1970-01-01