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
Resonant World	Maho Matsunaga			4:05	Resonant World	2014	E Standard	mute	1970-01-01
Rest Stop	Matchbox 20			4:33	Mad Season	2000	E Standard	mute	1970-01-01
Ride the Cliche	Stone Temple Pilots			3:22	Tiny Music...Songs from the Vatican Gift Shop	1996	E Standard	mute	1970-01-01
Riders Of The Storm	Hammerfall			4:38	Crimson Thunder	2002	Eb 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
Rivers In The Desert (VGmPeeta)	Shoji Meguro			3:49	Persona 5 Original Soundtrack	2017	E Standard	mute	1970-01-01
Rivers In the Desert	Shoji Meguro			5:15	Persona 5 OST	2017	Custom Tuning	mute	1970-01-01
Rivers Of Avalon	Red Hot Chili Peppers			3:44	The Zephyr Song	2002	E Standard	mute	1970-01-01
Rock Me On The Water	Jackson Browne			4:15	Jackson Browne	1972	E Standard	mute	1970-01-01
Rock Me to the Top	Tesla			3:40	Mechanical Resonance	1986	E Standard	mute	1970-01-01
Rocket Cider	NayutalieN			3:11	Vocaloseasons Summer	2018	E Standard	mute	1970-01-01
Room 409	Bullet For My Valentine			4:04	The Poison	2005	D Drop C	mute	1970-01-01
Room 409	Bullet For My Valentine			4:04	The Poison	2006	D Drop C	mute	1970-01-01
Rough Diamonds (TV Size)	Screen Mode			1:31	Shokugeki no Soma Season 2 OP	2016	E Standard	mute	1970-01-01