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
March to the Shore	In Flames			3:29	A Sense Of Purpose	2008	Custom Tuning	mute	1970-01-01
Marcha Turca	Mägo de Oz			2:15	Barakaldo D.F.	2008	E 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
Margaryna	Kabanos			4:39	Flaki z Olejem	2010	E Standard	mute	1970-01-01
Maria	Rage Against the Machine			3:51	The Battle of Los Angeles	1999	E Standard	mute	1970-01-01
Marian (Version)	The Sisters Of Mercy			5:46	First and Last and Always	1985	E Standard	mute	1970-01-01
Marigold	Periphery			5:31	Periphery III: Select Difficulty	2016	D Drop C	mute	1970-01-01
Marigold (Ajchili's Version)	Periphery			5:31	Periphery III: Select Difficulty	2016	Custom Tuning	mute	1970-01-01
Mario 3 - Underworld	The Advantage			0:55	Self-Titled	2004	E Standard	mute	1970-01-01
Mario Minor	Powerglove			3:55	Metal Kombat for the Mortal Ma	2008	Eb Standard	mute	1970-01-01
Marionetki	Korol I Shut			3:38	Trader of Nightmares	2006	E Standard	mute	1970-01-01
Mark of the Blade	Whitechapel			2:57	Mark of the Blade	2016	Custom Tuning	mute	1970-01-01
Marked	Bad Religion			1:51	Stranger Than Fiction	1994	Eb Standard	mute	1970-01-01
Market Theme	Koji Kondo			1:02	The Legend of Zelda: Ocarina of Time	1998	E Standard	mute	1970-01-01