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
Mt. Washington	Local Natives			3:23	Hummingbird	2013	E Standard	mute	1970-01-01
Much More Was Lost	Be'lakor			12:12	Coherence	2021	Custom Tuning	mute	1970-01-01
Mujer, Nada Me Has Dado	Panda			3:03	Sangre Fria	2013	Eb Standard	mute	1970-01-01
Mukashi Mukashi No Kyou No Boku	DECO27			4:50	Love-Lost Elegy	2010	E Standard	mute	1970-01-01
Munasawagi	Tricot			4:12	3	2017	Custom Tuning	mute	1970-01-01
Muramasa	Periphery			2:53	Periphery II	2012	Custom Tuning	mute	1970-01-01
Muramasa	Periphery			2:51	Periphery II: This time it's personal	2012	Custom Tuning	mute	1970-01-01
Murder Is Masturbation	Nothingface			4:00	Skeletons	2003	Custom Tuning	mute	1970-01-01
Murder Was The Case That They Gave Me	LeATHERMØUTH			2:59	XØ	2009	D Drop C	mute	1970-01-01
Murphy Was An Optimist	Norma Jean			4:24	The Anti Mother	2008	Eb Drop Db	mute	1970-01-01
Musica Para Pastilla	Patricio Rey y sus Redonditos de Ricota			4:40	Oktubre	1986	E Standard	mute	1970-01-01
Mussorgsky's Night on Bald Mountain (No Bass)	Paul Henry Smith & The Fauxharmonic Orchestra			3:02	Classical Frenzies	2010	E Standard	mute	1970-01-01
Mustard Gas	The Dear Hunter			4:13	Act III Life And Death	2009	Drop D	mute	1970-01-01
Musunde Hiraite Rasetsu to Mukuro	Hachi			4:33	None	2009	E Standard	mute	1970-01-01
My Boy (Twin Fantasy)	Car Seat Headrest			2:52	Twin Fantasy	2018	E Standard	mute	1970-01-01