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
Red Light Indicates Doors Are Secured	Arctic Monkeys			2:26	Whatever People Say I Am, That's What I'm Not	2006	E Standard	mute	1970-01-01
Red Morning	Devics			4:44	The Stars at Saint Andrea	2003	E Standard	mute	1970-01-01
Red Sky Warning	Ice Nine Kills			4:08	Safe Is Just A Shadow	2010	Eb Drop Db	mute	1970-01-01
Redshift Riders	Joe Satriani			4:53	Super Colossal	2006	E Standard	mute	1970-01-01
Reflectia	eufonius			4:53	true tears 5th Anniversary Box	2013	E Standard	mute	1970-01-01
Refugio Vital	Agora			4:57	Segundo Pasado	2001	E Standard	mute	1970-01-01
Reinventing Your Exit	Underoath			4:27	They're Only Chasing Safety	2004	Drop D	mute	1970-01-01
Reisen Marugo Std	flapfrog			3:09	sasanqua e.p.	2008	E Standard	mute	1970-01-01
Remember	Burden Of A Day			3:45	oneonethousand	2010	D Drop C	mute	1970-01-01
Remember Sadness	Hironobu Kageyama			2:56	Saint Seiya OST	1988	E Standard	mute	1970-01-01
Requiem	Lamb Of God			4:20	Sacrament	2006	Drop D	mute	1970-01-01
Requiem	Thy Art Is Murder			2:23	The Adversary	2010	AEADG	mute	1970-01-01
Resistance	High and Mighty Color			3:55	San	2007	E Standard	mute	1970-01-01
Resolution	MattyyyM			4:48	SAO: Alicization-War of Underworld OP MattyyyM Cover	2019	E Standard	mute	1970-01-01
Resurrection By Erection ft. Christopher Bowes	Powerwolf			4:01	Missa Cantorem	2021	Eb Drop Db	mute	1970-01-01