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
Reach for the Sky (TEST, NO DD)	Social Distortion			3:35	Sex, Love and Rock 'n' Roll	2004	E Standard	mute	1970-01-01
Red Red Wine	UB40			3:08	Labour of Love	1983	E Standard	mute	1970-01-01
Red Right Hand	Nick Cave & The Bad Seeds			6:15	Let Love In	1994	E Standard	mute	1970-01-01
Red Right Hand	Nick Cave and the Bad seeds			6:13	Let Love In	1994	E Standard	mute	1970-01-01
Redbone	Childish Gambino			5:29	Awaken, My Love!	2016	E Standard	mute	1970-01-01
Repentless	Beast In Black			4:10	From Hell With Love	2019	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
Rest My Chemistry	Interpol			5:03	Our Love To Admire	2007	E Standard	mute	1970-01-01
Reversio Ad Secessum	Draconian			7:33	Where Lovers Mourn	2003	D Standard	mute	1970-01-01
Revolution	The Cult			5:29	Love	1985	E Standard	mute	1970-01-01
Ring My Bell	Anita Ward			3:17	Songs Of Love	1979	E Standard	mute	1970-01-01
Ring My Bell	Anita Ward			3:35	Songs of Love	1979	E Standard	mute	1970-01-01
Rising Sun	Power Glove			2:42	Powerglove	2016	E Standard	mute	1970-01-01
Rituals	Rolo Tomassi			3:24	Time Will Die and Love Will Bury It	2018	Drop D	mute	1970-01-01
River Flows In You	Yiruma			3:38	In Love	2001	E Standard	mute	1970-01-01