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
Four Five Seconds	Rihanna			3:11	Four Five Seconds	2015	E Standard	mute	1970-01-01
Four Graves	Dover			3:40	late	1999	Eb Standard	mute	1970-01-01
Four Horsemen	Metallica			7:17	KILL 'EM ALL	1983	E Standard	mute	1970-01-01
Four Horsemen	The Clash			3:05	London Calling	1979	E Standard	mute	1970-01-01
Four Horsemen (Live)	Metallica			5:11	Live: Binge & Purge	1989	E Standard	mute	1970-01-01
Four Out Of Five	Arctic Monkeys			5:15	Tranquility Base Hotel & Casino	2018	E Standard	mute	1970-01-01
Four Rivers	Buckethead			2:40	A Real Diamond In The Rough	2009	E Standard	mute	1970-01-01
Four Rusted Horses	Marilyn Manson			5:01	The High End of Low	2009	E Standard	mute	1970-01-01
Four Sticks	Led Zeppelin			4:50	Led Zeppelin IV	1971	E Standard	mute	1970-01-01
Four Teeth	True Widow			6:20	Circumambulation	2013	Custom Tuning	mute	1970-01-01
Four To The Floor	Starsailor			4:15	Silence Is Easy	2003	E Standard	mute	1970-01-01
Four Walls	While She Sleeps			5:11	Brainwashed	2015	D Drop C	mute	1970-01-01
Four on Six	Wes Montgomery			6:18	The Incredible Jazz Guitar of Wes Montgomery	2008	E Standard	mute	1970-01-01
FourThirtyTwo (Intro)/Vultures & Sharks	Oceans Ate Alaska			5:02	Lost Isles	2015	C# Drop B	mute	1970-01-01
FourThirtyTwo/Vultures And Sharks	Oceans Ate Alaska			5:02	Lost Isles	2015	C# Drop B	mute	1970-01-01