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
Malverde	Red Fang			4:05	Murder The Mountains	2011	Drop D	mute	1970-01-01
Maly Powstaniec	Horytnica			5:26	Glos Patriotow	2011	E Standard	mute	1970-01-01
Mammoth	The Devil Wears Prada			2:46	Dead Throne	2011	E Standard	mute	1970-01-01
Man Muss Nicht Sterben Um In Der Hölle Zu Sein	Hämatom			4:06	Wenn Man Vom Teufel Spricht	2011	D Drop C	mute	1970-01-01
Man Of Simple Pleasures	Kasabian			3:54	Velociraptor!	2011	E Standard	mute	1970-01-01
Man Up	The Book Of Mormon			4:08	The Book Of Mormon	2011	Drop D	mute	1970-01-01
Manic in the Grips	Trap Them			1:01	Darker Handcraft	2011	D Drop C	mute	1970-01-01
Manifesting Obscenity	Ingested			4:00	The Surreptition	2011	AEADG	mute	1970-01-01
Marrow Of The Earth	Opeth			4:21	Heritage	2011	E Standard	mute	1970-01-01
Marry You	Bruno Mars			3:53	Doo-Wops & Hooligans	2011	E Standard	mute	1970-01-01
Masquerade	Versailles			6:04	Holy Grail	2011	Eb Drop Db	mute	1970-01-01
Material Girl	Cassandra Beck			2:54	Jazz and '80s Part 2	2011	E Standard	mute	1970-01-01
Me Ama	Diante do Trono			7:19	Sol da Justica	2011	E Standard	mute	1970-01-01
Medic!	Mike Morasky			2:41	Team Fortress 2	2011	E Standard	mute	1970-01-01
Megaman X - Storm Eagle (Rock/Metal Cover)	Lennart Alsing			2:37	MegamanX Soundtrack	2011	E Standard	mute	1970-01-01