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
Reptiles	Them Crooked Vultures			4:21	Them Crooked Vultures	2009	E Standard	mute	1970-01-01
Republic	Rx Bandits			4:15	The Resignation	2003	Drop D	mute	1970-01-01
Repulsion	Der Weg einer Freiheit			8:43	Stellar	2015	Custom Tuning	mute	1970-01-01
Repulsion	Der weg einer freiheit			8:41	Stellar	2015	Eb Standard	mute	1970-01-01
Requiem	Avenged Sevenfold			4:23	Hail To The King	2013	Eb Drop Db	mute	1970-01-01
Requiem	Dear Evan Hansen			4:24	Dear Evan Hansen (Original Broadway Cast Recording)	2017	E Standard	mute	1970-01-01
Requiem	Der Weg einer Freiheit			8:36	Stellar	2015	Custom Tuning	mute	1970-01-01
Requiem	Dué le Quartz			5:34	Galyuu	2003	E Standard	mute	1970-01-01
Requiem	Lamb Of God			4:20	Sacrament	2006	Drop D	mute	1970-01-01
Requiem	Mago de oz			8:06	La leyenda de La Mancha	1998	E Standard	mute	1970-01-01
Requiem	Thy Art Is Murder			2:23	The Adversary	2010	AEADG	mute	1970-01-01
Requiem For Humanity	Inon Zur/Maciej Dąbrowski			3:10	Fallout 3 OST	2014	E Standard	mute	1970-01-01
Requiem For Youth	Witchfinder General			4:32	Friends of Hell	1983	D Standard	mute	1970-01-01
Requiem K.626 (Lacrimosa)	Wolfgang Amadeus Mozart			2:07	SNK vs. Capcom: The Match of the Millennium OST	1999	E Standard	mute	1970-01-01
Requiem K626. VIII. Lacrimosa	Wolfgang Amadeus Mozart			2:49	The 99 Darkest Pieces of Class	1792	E Standard	mute	1970-01-01