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
Nugget	Cake			4:06	Fashion Nugget	1996	E Standard	mute	1970-01-01
Nuke	FIDLAR			0:38	Almost Free	2019	E Standard	mute	1970-01-01
Nuke The Cross	Toxic Holocaust			2:50	An Overdose Of Death	2008	D Standard	mute	1970-01-01
Nulle Part C'est Chez Moi	Guerilla Poubelle			1:52	Amor Fati	2013	Eb Standard	mute	1970-01-01
Number City	Coheed and Cambria			3:58	The Afterman: Descension	2013	E Standard	mute	1970-01-01
Numbers	Frost			4:18	Falling Satellites	2016	E Standard	mute	1970-01-01
Nunca Nadie Nos Podrá Parar (Gracias)	Panda			4:53	Sinfonia Soledad	2006	Eb Standard	mute	1970-01-01
Nuns Have No Fun	Mercyful Fate			4:25	Mercyful Fate	1982	E Standard	mute	1970-01-01
Nutshell (piano cover)	Alice In Chains			3:53	Jar Of Flies	1994	Eb Standard	mute	1970-01-01
Nyan-spoken Understanding	Utsu-P			3:37	Warufuzake	2013	Custom Tuning	mute	1970-01-01
O Holy Night	Suzy Bogguss			4:00	Have Yourself a Merry Little Christmas	2003	E Standard	mute	1970-01-01
O-o-h Child	The Five Stairsteps			3:20	The Best of The Five Stairsteps	1970	E Standard	mute	1970-01-01
O.G. Loko	Of Mice & Men			3:21	The Flood	2011	D Drop C	mute	1970-01-01
ODDS&ENDS	supercell feat. Hatsune Miku			5:50	ODDS & ENDS / Sky of Beginning	2012	E Standard	mute	1970-01-01
OG Bule Sky	Hot Mulligan			2:40	you'll be fine	2020	E Standard	mute	1970-01-01