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
Ren and Stimpy Show (Outro)	Die Screaming Leiderhôsens			0:45	You Eediot!	1993	E Standard	mute	1970-01-01
Replay (2019) A Metal Tribute To The History Of Video Games	FamilyJules			19:54	Youtube	2019	AEADG	mute	1970-01-01
Replica	The xx			4:11	I See You	2017	E Standard	mute	1970-01-01
Resentment	A Day To Remember			3:52	You're Welcome	2020	B Drop A	mute	1970-01-01
Resign to Surrender	Epica			6:22	Design Your Universe	2009	BEADG	mute	1970-01-01
Resolve	Foo Fighters			4:51	In Your Honor	2005	E Standard	mute	1970-01-01
Respect	Aretha Franklin			2:30	I Never Loved a Man the Way I Love You	1967	E Standard	mute	1970-01-01
Respect Yourself	The Staple Singers			4:59	Be Attitude: RespectYourself	1971	E Standard	mute	1970-01-01
Reverse This Curse	Escape The Fate			3:43	Dying Is Your Latest Fashion	2007	D Drop C	mute	1970-01-01
Revolt	While She Sleeps			4:00	You Are We	2017	D Drop C	mute	1970-01-01
Rhythm Guitar 1st Lesson	You			7:37	You	2015	E Standard	mute	1970-01-01
Rich Kids	New Medicine			3:07	Race You To The Bottom	2010	Drop D	mute	1970-01-01
Ride To Live, Live To Ride	Twisted Sister			4:08	You Can't Stop Rock 'N' Roll	1983	Drop D	mute	1970-01-01
Ridin' The Storm Out	REO Speedwagon			5:52	Live: You Get What You Play For	1977	E Standard	mute	1970-01-01
Right In Two	Beard Of Harmony			8:17	Youtube	2018	E Standard	mute	1970-01-01