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
The Realest	Issues			4:10	Headspace	2016	Bb Drop Ab	mute	1970-01-01
The Reaping	Coheed and Cambria			1:16	Good Apollo I'm Burning Star IV, Volume Two: No World for Tomorrow	2007	Drop D	mute	1970-01-01
The Reason	Hoobastank			3:56	The Reason	2004	E Standard	mute	1970-01-01
The Receiving End of It All	Streetlight Manifesto			5:21	Somewhere In The Between	2007	E Standard	mute	1970-01-01
The Reckoning	Within Temptation			4:11	Resist (Extended Deluxe)	2018	Custom Tuning	mute	1970-01-01
The Recovery	Death Lullaby			3:39	The Recovery (Single)	2015	D Drop C	mute	1970-01-01
The Red Album CD-2 Part-1	The Beatles			14:08	The Beatles 1962-1966 The Red Album CD-2 Part-1	1966	E Standard	mute	1970-01-01
The Red Baron (History Version)	Sabaton			3:15	The Great War (History Version	2019	E Standard	mute	1970-01-01
The Red In The Sky Is Ours	At The Gates			4:43	The Red in the Sky Is Ours	1992	B Standard	mute	1970-01-01
The Red and the Black	Iron Maiden			13:36	The Book of Souls	2015	E Standard	mute	1970-01-01
The Redeem Team	Buckethead			5:03	Albino Slug	2008	E Standard	mute	1970-01-01
The Reflecting God	Marilyn Manson			5:36	Antichrist Superstar	1996	E Standard	mute	1970-01-01
The Reflecting God (Live)	Marilyn Manson			5:35	The Last Tour On Earth	1999	E Standard	mute	1970-01-01
The Reflective Property	August Burns Red			3:54	Thrill Seeker	2005	D Drop C	mute	1970-01-01
The Reflective Property	August Burns Red			3:54	Thrill Seeker	2005	D Drop C	mute	1970-01-01