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
Mandatory Suicide	Slayer			4:09	South of Heaven	1988	Eb Standard	mute	1970-01-01
Maniac	Carnival In Coal			4:10	French Cancan	2001	B Standard	mute	1970-01-01
Manifest Density, Part 2	Local H			4:41	As Good as Dead	1996	Eb Standard	mute	1970-01-01
Mankind	Cast			3:44	All Change	1995	Eb Standard	mute	1970-01-01
Mantronic	WASP			4:12	Inside the Electric Circus	1986	Eb Standard	mute	1970-01-01
March Of Mephisto	Kamelot			5:27	The Black Halo	2005	Eb Standard	mute	1970-01-01
March Of The Gronibard/Je Te Déchire L'Anus	Gronibard			2:17	Gronibard	2001	B Standard	mute	1970-01-01
March Of The Neovocyts	SUP (Supuration)			4:13	Hegemony	2008	B Standard	mute	1970-01-01
Marching Off To War	Motörhead			4:12	Another Perfect Day	1983	Eb Standard	mute	1970-01-01
Marching Through Graveyards	Kataklysm			5:25	Of Ghosts and Gods	2015	B Standard	mute	1970-01-01
Marching in Time	Tremonti			7:36	Marching in Time	2021	B Standard	mute	1970-01-01
Maria Salvador	J-Ax feat. Il Cile			3:45	Il bello d'esser brutti	2015	Eb Standard	mute	1970-01-01
Mario Minor	Powerglove			3:55	Metal Kombat for the Mortal Ma	2008	Eb Standard	mute	1970-01-01
Mark Tremonti - Legato Exercises	You			0:29	Guitar Exercises	2016	Eb Standard	mute	1970-01-01
Marked	Bad Religion			1:51	Stranger Than Fiction	1994	Eb Standard	mute	1970-01-01