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
Reflections Of My Life	The Marmalade			4:18	Reflections Of My Life	1969	E Standard	mute	1970-01-01
Reflections Through Fire	Sylosis			4:33	Conclusion of an Age	2008	E Standard	mute	1970-01-01
Reformation (Wrath Of The Old Gods)	Kiuas			6:15	Reformation	2006	D Drop C	mute	1970-01-01
Regurgitated Disinformation	Job For A Cowboy			4:52	Ruination	2009	D Standard	mute	1970-01-01
Reign Of The Tyrants	Jag Panzer			3:37	Ample Destruction	1984	Eb Standard	mute	1970-01-01
Rejection	40 Below Summer			4:03	Invitation to the Dance	2001	C# Drop B	mute	1970-01-01
Relentless Mutation	Archspire			4:37	Relentless Mutation	2017	Custom Tuning	mute	1970-01-01
Relive the Magic, Bring the Magic Home	Reggie and the Full Effect			2:43	Promotional Copy	2000	Eb Standard	mute	1970-01-01
Remedy	Hot Water Music			2:42	Caution	2002	E Standard	mute	1970-01-01
Remedy	The Black Crowes			5:26	The Southern Harmony and Musical Companion	1992	Opend G	mute	1970-01-01
Remember When	Hatebreed			2:43	The Concrete Confessional	2016	D Drop C	mute	1970-01-01
Remote Tumour Seeker	Archspire			4:03	Relentless Mutation	2017	Custom Tuning	mute	1970-01-01
Remote Tumour Sekker	Archspire			4:04	Archspire Relentless Mutation	2017	BEADG	mute	1970-01-01
Reprogrammed to Hate	Whitechapel			3:48	A New Era of Corruption	2010	AEADG	mute	1970-01-01
Reptile	Dimmu Borgir			5:18	Spiritual Black Dimensions	1999	E Standard	mute	1970-01-01