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
Reminiscence	With Different Eyes			3:49	Inevitable	2016	Custom Tuning	mute	1970-01-01
Remote Tumour Seeker	Archspire			4:03	Relentless Mutation	2017	Custom Tuning	mute	1970-01-01
Remurdered	Mogwai			6:24	Rave Tapes	2014	Custom Tuning	mute	1970-01-01
Renaissance	Inventure			4:29	No Time to Waste	2020	Custom Tuning	mute	1970-01-01
Renob, Nevada	Attack Attack!			3:18	Attack Attack	2010	Custom Tuning	mute	1970-01-01
Repined Bastard Nation	Satyricon			5:49	Ten Horns Ten Diadems	2002	Custom Tuning	mute	1970-01-01
Reptile	Periphery			13:59	Periphery IV: HAIL STAN	2019	Custom Tuning	mute	1970-01-01
Reptile	Thornhill			3:49	Butterfly	2018	Custom Tuning	mute	1970-01-01
Repulsion	Der Weg einer Freiheit			8:43	Stellar	2015	Custom Tuning	mute	1970-01-01
Requiem	Angelmaker			4:40	Angelmaker	2019	Custom Tuning	mute	1970-01-01
Requiem	Der Weg einer Freiheit			8:36	Stellar	2015	Custom Tuning	mute	1970-01-01
Requiem	Galneryus			5:16	The Flag Of Punishment	2003	Custom Tuning	mute	1970-01-01
Resident Evil 2 - Scenario B Ending Theme	Capcom			2:38	Resident Evil 2 OST	1998	Custom Tuning	mute	1970-01-01
Resident Evil 2 Claire B Credits	Ueda, Uchiyama, Nishigaki			2:38	Resident Evil 2 OST	1998	Custom Tuning	mute	1970-01-01
Resist And Bite	Sabaton			3:29	Heroes	2014	Custom Tuning	mute	1970-01-01