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 Ritual	Destruction			5:14	Infernal Overkill	1985	E Standard	mute	1970-01-01
The Ritual	Testament			7:30	The Ritual	1992	Eb Standard	mute	1970-01-01
The Rivalry	Running Wild			5:37	The Rivalry	1998	E Standard	mute	1970-01-01
The River	10 Years			4:05	From Birth to Burial	2015	Eb Drop Db	mute	1970-01-01
The River	Good Charlotte			3:18	Good Morning Revival	2007	E Standard	mute	1970-01-01
The River	Parkway Drive			5:30	Atlas	2012	Custom Tuning	mute	1970-01-01
The River	Wage War			3:51	Blueprints	2015	Custom Tuning	mute	1970-01-01
The River Dragon Has Come	Nevermore			5:10	Dead Heart in a Dead World	2000	Custom Tuning	mute	1970-01-01
The River Ov Knives	Worm Shepherd			5:17	Ritual Hymns	2022	Custom Tuning	mute	1970-01-01
The River Song	Amorphis			4:32	Halo	2022	D Standard	mute	1970-01-01
The Riverboat Song	Ocean Colour Scene			4:59	Moseley Shoals	1996	E Standard	mute	1970-01-01
The Road Back Home	The Flower Kings			9:00	Retropolis	1996	E Standard	mute	1970-01-01
The Road I Must Travel	Tom Morello: The Nightwatchman			3:53	One Man Revolution	2007	E Standard	mute	1970-01-01
The Road Most Traveled Acoustic	Jeremy Soule			1:26	The Elder Scrolls III: Morrowind OST	2002	E Standard	mute	1970-01-01
The Road Most Travelled	Jeremy Soule/Tim Herlihy			1:41	The Elder Scrolls III: Morrowind OST	2013	E Standard	mute	1970-01-01