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
Mannequins Are My Friend	Buckethead			2:12	The Shores of Molokai	2012	E Standard	mute	1970-01-01
Mantronic	WASP			4:12	Inside the Electric Circus	1986	Eb Standard	mute	1970-01-01
Manufactured Extinct	Cattle Decapitation			4:41	The Anthropocene Extinction	2015	Custom Tuning	mute	1970-01-01
Maple leaves	OrangeCoffee			5:50	The Lounge Map 1 - morning coffee set	2012	E Standard	mute	1970-01-01
Mar Adentro	Héroes Del Silencio			4:04	The Platinum Collection	2006	E Standard	mute	1970-01-01
Marble Gallery Fingerstyle	Michiru Yamane/Manyth			3:02	Castlevania: Symphony of the Night OST	1997	E Standard	mute	1970-01-01
Marble Zone	Masato Nakamura			1:53	Sonic the hedgehog	1991	E Standard	mute	1970-01-01
Marble Zone Acoustic	Masatao Nakamura			1:21	Sonic the Hedgehog OST	1991	Drop D	mute	1970-01-01
Marbled Regression	Thirty Nights of Violence			3:53	You'll See Me Up There	2020	Custom Tuning	mute	1970-01-01
Marc Shaiman	The Addams Family			2:46	The Addams Family	2016	E Standard	mute	1970-01-01
March For Freedom (Part VI)	Forgotten Tales			4:28	All The Sinners	2004	E Standard	mute	1970-01-01
March Into The Sea	Modest Mouse			3:30	We Were Dead Before The Ship Even Sank	2007	E Standard	mute	1970-01-01
March Into War	Bloodbound			4:55	Creatures Of The Dark Realm	2021	Custom Tuning	mute	1970-01-01
March Of Mephisto	Kamelot			5:27	The Black Halo	2005	Eb Standard	mute	1970-01-01
March Of The Pigs (Live in Melbourne 2014)	Nine Inch Nails			4:17	The Downward Spiral	2014	E Standard	mute	1970-01-01