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
Narayan	The Prodigy			9:08	The Fat of The Land	1997	E Standard	mute	1970-01-01
Narrative of Soul Against Soul	AFI			2:32	Black Sails in the Sunset	1999	E Standard	mute	1970-01-01
Narrow Straits	Lagwagon			2:09	Let's Talk About Leftovers	2000	E Standard	mute	1970-01-01
Nathan Drake's Theme	Uncharted Theme (PS3 Game)			1:44	Uncharted Theme	2011	E Standard	mute	1970-01-01
Natsu ga Tsuzuku kara	9mm Parabellum Bullet			3:50	DEEP BLUE	2019	E Standard	mute	1970-01-01
Natsu no Mirage	Kanako Wada			4:36	Kimagure Orange Road Ending 1	1988	E Standard	mute	1970-01-01
Natsuzora! SUN! SUN! SEVEN!	Poppin'Party			4:36	STAR BEAT! Hoshi no Kodou	2017	E Standard	mute	1970-01-01
Natural Blues	Moby			4:13	Play	1999	E Standard	mute	1970-01-01
Natural Born B	Utsu-P	Bass2		3:33	Shibori Kasu	2017	D Drop C	mute	1970-01-01
Natural Born Killer	Avenged Sevenfold			5:25	Nightmare	2010	Drop D	mute	1970-01-01
Natural Corruption	Epica			5:27	The Quantum Enigma	2014	BEADG	mute	1970-01-01
Natural Death	Fuck You And Die			3:22	Elements of Instability	2014	D Drop C	mute	1970-01-01
Natural High	Bloodstone			4:56	Natural High	1973	E Standard	mute	1970-01-01
Natural High	HammerFall			4:18	Threshold	2006	Eb Standard	mute	1970-01-01
Natural High	Hammerfall			4:20	Threshold	2006	Eb Standard	mute	1970-01-01