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
Rain With Capuccino	Yorushika			4:32	Eruma	2019	Eb Standard	mute	1970-01-01
Rainbow Tylenol	Kitsune2			1:57	Square Dance	2009	Eb Standard	mute	1970-01-01
Rainy Afternoon	Hank Garland			2:48	Move! The Guitar Artistry of Hank Garland	2014	E Standard	mute	1970-01-01
Rakuen No Kimi	österreich			4:14	Rakuen No Kimi	2018	E Standard	mute	1970-01-01
Ranbu No Melody	SID			3:55	Dead Stock	2011	Custom Tuning	mute	1970-01-01
Ranbu no Melody	MattyyyM			3:48	Bleach (Opening 13 Full) MattyyyM Cover	2019	Eb Standard	mute	1970-01-01
Rautaa Rinnoista	Mokoma			4:10	Sydänjuuret	2010	AEADG	mute	1970-01-01
Ravenous	Arch Enemy			4:07	Wages Of Sin)	2001	C Standard	mute	1970-01-01
Ravenous	Arch Enemy			4:09	Wages Of Sin)	2001	C Standard	mute	1970-01-01
Ravenous	Atreyu			3:12	Congregation of the Damned	2009	D Drop C	mute	1970-01-01
Ravenous	Killswitch Engage			2:57	Atonement	2019	D Drop C	mute	1970-01-01
Ravenous Medicine	Voivod			4:27	Killing Technology	1987	E Standard	mute	1970-01-01
Ravenous, Ravenous Rhinos	I Set My Friends On Fire			2:51	You Can't Spell Slaughter Without Laughter	2008	D Drop C	mute	1970-01-01
Reach for the Sky (TEST, NO DD)	Social Distortion			3:35	Sex, Love and Rock 'n' Roll	2004	E Standard	mute	1970-01-01
Ready Or Not	Manbreak			4:23	Come And See	1997	Eb Standard	mute	1970-01-01