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
Martyr	Fear Factory			4:08	Soul of a New Machine	1992	BEADG	mute	1970-01-01
Mary	The Death Riders			5:09	Soundtrack for Depression	2005	D Standard	mute	1970-01-01
Master Plan	Simon Viklund			3:31	Payday 2 Remastered (Official Soundtrack), Vol. 1	2016	E Standard	mute	1970-01-01
Matoya's Cavern	Uematsu, Nobuo			1:18	All Sounds of Final Fantasy I - II	1989	E Standard	mute	1970-01-01
Mausoleum	Rs Ian Taylor			5:28	Runescape Soundtrack	2004	E Standard	mute	1970-01-01
Maze	savage genius			4:46	PandoraHearts Original SoundTrack1	2009	E Standard	mute	1970-01-01
Meathook	Mick Gordon			6:09	DOOM: Eternal (Original Game Soundtrack)	2020	Custom Tuning	mute	1970-01-01
Mechanical Rhythm	Xenoblade Chronicles			3:08	Xenoblade Chronicles Soundtrack	2010	Drop D	mute	1970-01-01
Meet Again	Daisuke Ishiwatari			3:20	Guilty Gear XX Original Soundtrack	2002	E Standard	mute	1970-01-01
Mega Man 2 - Dr Wily's Castle Stage 1	SongeLeReveur			2:42	Game Soundtracks	2010	E Standard	mute	1970-01-01
Megaman 11 - Fuse Man Stage Instrumental	Marika Suzuki			2:42	Megaman 11 Soundtrack	2018	Custom Tuning	mute	1970-01-01
Megaman X - Storm Eagle (Rock/Metal Cover)	Lennart Alsing			2:37	MegamanX Soundtrack	2011	E Standard	mute	1970-01-01
Memphis Soul Stew	King Curtis			2:59	King Size Soul	1967	E Standard	mute	1970-01-01
Menu Screen (FFI)	Uematsu, Nobuo			0:46	All Sounds of Final Fantasy I - II	1989	E Standard	mute	1970-01-01
Metal Souls	Destinia			5:12	Metal Souls	2018	E Standard	mute	1970-01-01