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
Reassemble	A Day To Remember			4:00	Bad Vibrations	2016	Custom Tuning	mute	1970-01-01
Rebirth of An Inverted World	Within Destruction			4:39	Void	2016	Custom Tuning	mute	1970-01-01
Rebound	Volbeat			2:29	Seal The Deal & Let's Boogie	2016	E Standard	mute	1970-01-01
Recharging the Void (E Tuning)	Vektor			13:40	Terminal Redux	2016	E Standard	mute	1970-01-01
Recharging the Void (F Tuning)	Vektor			13:40	Terminal Redux	2016	F Standard	mute	1970-01-01
Recollections (Feat. Chris Vogagis of Wide Eyes)	A Sense of Purpose			5:01	Zoetic	2016	Custom Tuning	mute	1970-01-01
Red Giant	Haken			6:11	Affinity	2016	Custom Tuning	mute	1970-01-01
Redbone	Childish Gambino			5:29	Awaken, My Love!	2016	E Standard	mute	1970-01-01
Redefine	Trentemøller			4:49	Fixion	2016	E Standard	mute	1970-01-01
Redo	Kara Hajimeru Isekai Seikatsu			4:21	-	2016	E Standard	mute	1970-01-01
Redo	Konomi Suzuki			4:21	Re:Zero OP	2016	E Standard	mute	1970-01-01
Refrain Boy	ALL OFF			3:36	Mob Psycho 100 ED Single	2016	Eb Standard	mute	1970-01-01
Refrain Boy -English Ver.-	ALL OFF			3:36	Mob Psycho 100 ED Single	2016	Eb Standard	mute	1970-01-01
Regress	Polaris			3:29	The Guilt & The Grief	2016	Custom Tuning	mute	1970-01-01
Regret & House of Eternal Hunt	Avatar			7:03	Feathers & Flesh	2016	B Standard	mute	1970-01-01