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
Behind The Leathermask	Powerwolf			4:39	Lupus Dei	2007	Eb Standard	mute	1970-01-01
Behind a Mask	Machine Head			4:07	Catharsis	2018	E Standard	mute	1970-01-01
Beneath the Mask	Shoji Meguro			4:41	Persona 5 OST	2016	E Standard	mute	1970-01-01
Black Damask (The Fog)	Motionless In White			3:50	Infamous (Deluxe Edition)	2013	B Drop A	mute	1970-01-01
Black Masks and Gasoline	Rise Against			3:04	Revolutions Per Minute	2003	E Standard	mute	1970-01-01
Covered By A Mask	Breakdown of Sanity			3:54	The Last Sunset	2009	C# Drop B	mute	1970-01-01
Dead Skin Mask	Slayer			5:23	Seasons in the Abyss	1990	Eb Standard	mute	1970-01-01
Deathmask Divine	The Black Dahlia Murder			3:42	Nocturnal	2007	C Standard	mute	1970-01-01
Different Masks On The Same Face	Sylosis			2:53	Nuclear Blast Showdown Summer 2016	2016	E Standard	mute	1970-01-01
Gasmask Terror	Belphegor			3:44	Conjuring The Dead	2014	C Standard	mute	1970-01-01
He's Back (The Man Behind The Mask)	Alice Cooper			3:59	Constrictor	1986	D Standard	mute	1970-01-01
Hiding Mask	The Obsessed	Bass2		3:56	Lunar Womb	1991	Custom Tuning	mute	1970-01-01
I, The Mask	In Flames			3:55	I, The Mask	2019	Custom Tuning	mute	1970-01-01
I, The Mask (Drop D)	In Flames			3:55	I, The Mask	2019	Drop D	mute	1970-01-01
Liar Mask	MattyyyM			4:48	Akame Ga Kill! OP 2 Metal Cover	2019	Drop D	mute	1970-01-01