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
Runaways	All Time Low			3:37	Future Hearts	2015	E Standard	mute	1970-01-01
Runescape Medieval	Haawke			4:55	Haawke Projects	2015	E Standard	mute	1970-01-01
Running On Empty	Jackson Browne			4:59	Running on Empty	1977	E Standard	mute	1970-01-01
Running Up That Hill	William Control			4:32	Control Records Sampler	2017	E Standard	mute	1970-01-01
Running Up That Hill	Within Temptation			4:03	Running Up That Hill	2003	E Standard	mute	1970-01-01
Rush E	Andrew Wrangell			2:37		2018	E Standard	mute	1970-01-01
Rush Hour	Jane Wiedlin			4:08	Fur	1988	Custom Tuning	mute	1970-01-01
Russian Roulette	Lords Of The New Church			3:54	Lords Of The New Church	1982	E Standard	mute	1970-01-01
Russian Roulette	Yngwie Malmsteen			4:13	Unleash The Fury	2005	Eb Standard	mute	1970-01-01
Ry Ry's Song	Glassjaw			3:36	Everything You Ever Wanted To Know About Silence	2009	Drop D	mute	1970-01-01
Ryouseibai de ii ja nai	Gesu no Kiwami Otome			3:56	Ryoseibai	2016	E Standard	mute	1970-01-01
S-S-S-Saturday	Bowling For Soup			3:08	Fishin' For Woos	2011	E Standard	mute	1970-01-01
S.M.F.	Twisted Sister			3:09	Stay Hungry	1984	E Standard	mute	1970-01-01
S.O.B.	Nathaniel Rateliff & The Night Sweats			4:10	Nathaniel Rateliff & The Night Sweats	2015	E Standard	mute	1970-01-01
SAMWISE SUK MEH	The Uncle Joe Show			0:49	The Uncle Joe Show	2020	BEADG	mute	1970-01-01