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
Mad World	Gary Jules			3:06	Donnie Darko	2001	E Standard	mute	1970-01-01
Main Theme	Tomohito Nishiura			2:28	Dark Cloud OST	2000	E Standard	mute	1970-01-01
Majula	Motoi Sakuraba			2:41	Dark Souls II Soundtrack	2014	E Standard	mute	1970-01-01
Malfeitor	Watain			7:01	Lawless Darkness	2010	C Standard	mute	1970-01-01
Malfeitor	Watain			7:02	Lawless Darkness	2010	D Standard	mute	1970-01-01
Malignant Epitaph	Carnage			3:20	Dark Recollections	1990	B Standard	mute	1970-01-01
Man Kills Mankind	Testament			5:09	Dark Roots Of Earth	2012	Eb Standard	mute	1970-01-01
Man Overboard	blink-182			2:56	The Mark, Tom, and Travis Show	2000	E Standard	mute	1970-01-01
Man of Faith	Solar Fragment			4:30	A Spark of Deity	2007	E Standard	mute	1970-01-01
Manic in the Grips	Trap Them			1:01	Darker Handcraft	2011	D Drop C	mute	1970-01-01
March Into War	Bloodbound			4:55	Creatures Of The Dark Realm	2021	Custom Tuning	mute	1970-01-01
Marching For Revenge	Angel Dust			4:40	Into The Dark Past	1986	E Standard	mute	1970-01-01
Mark of the Blade	Whitechapel			2:57	Mark of the Blade	2016	Custom Tuning	mute	1970-01-01
Mars Attacks	Darko			3:24	Darko	2021	Custom Tuning	mute	1970-01-01
Massacre	Bathory			2:41	Under The Sign Of The Black Mark	1986	E Standard	mute	1970-01-01