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
3ème Sexe	Indochine			4:51	3	1985	E Standard	mute	1970-01-01
4 Challenges	Photon Maiden			4:00	4 4 Challenges(Single)	2021	Custom Tuning	mute	1970-01-01
4 Degrees	Tool			6:07	Undertow	1993	Drop D	mute	1970-01-01
4 Elementos	La Musicalite Feat. Sueño De Morfeo			3:42	4 Elementos	2009	E Standard	mute	1970-01-01
4 Finger Exercise 1	kingkill_33			1:09	Exercises	2009	E Standard	mute	1970-01-01
4 Million Minutes	Zornik			3:47	4 Million Minutes	2008	E Standard	mute	1970-01-01
4 Songs	Superjoint Ritual			6:22	Use Once and Destroy	2002	C# Standard	mute	1970-01-01
4 Words (To Choke Upon)	Bullet For My Valentine			3:50	The Poison	2005	D Drop C	mute	1970-01-01
40 DAYS	BLESSTHEFALL			4:19	BLESSTHEFALL	1980	Drop D	mute	1970-01-01
40 Nights	August Burns Red			3:57	Leveler	2011	D Drop C	mute	1970-01-01
4000 Rainy Nights	Stratovarius			6:03	Destiny	2016	Eb Standard	mute	1970-01-01
409 In Your Coffee Maker (D STD)	Green Day			2:58	Slappy	1990	D Standard	mute	1970-01-01
43 Burnt (Ramen's Ver)	The Dillinger Escape Plan			4:36	Calculating Infinity	1999	E Standard	mute	1970-01-01
44 Magnum Opus	Exodus			6:59	Shovel Headed Kill Machine	2005	D Standard	mute	1970-01-01
44 Minutes	Megadeth			4:40	Endgame	2009	E Standard	mute	1970-01-01