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
Priests of Sodom	Cannibal Corpse			3:34	Evisceration Plague	2009	Bb Standard	mute	1970-01-01
Profugos (Backtrack Gira Me Verás Volver 2007)	Soda Stereo/Jesus Rosales			5:55	Gira Me Veras Volver	2021	E Standard	mute	1970-01-01
Puttin' On The Ritz	Ella Fitzgerald			2:21	Ella Fitzgerald Sings The Irving Berlin Songbook	1958	E Standard	mute	1970-01-01
Question Everything	8stops7			4:32	In Moderation	2000	E Standard	mute	1970-01-01
Quicksand Symmetry	Disarmonia Mundi			4:40	Fragments of D-Generation	2004	C# Drop B	mute	1970-01-01
Qué ves?	Divididos			5:17	La era de la boludez	1993	E Standard	mute	1970-01-01
Raven	Aria			5:45	Chimera	2001	E Standard	mute	1970-01-01
Raven	Aria			5:55	Himera	2001	Eb Standard	mute	1970-01-01
Reach Out for the Light	Avantasia			6:35	The Metal Opera, Parts I & II	2008	Eb Standard	mute	1970-01-01
Rebel at Heart	Running Wild			5:55	Masquerade	1995	E Standard	mute	1970-01-01
Rebellion (Lies)	Arcade Fire			5:14	Funeral	2004	E Standard	mute	1970-01-01
Red Clouds	Disarmonia Mundi			5:20	Fragments Of D-Generation	2004	Custom Tuning	mute	1970-01-01
Reflection	Tool			11:08	Lateralus	2001	Drop D	mute	1970-01-01
Regenerate	We Came As Romans			3:50	Regenerate	2015	Custom Tuning	mute	1970-01-01
Remain Nameless	Hatebreed			2:53	Perseverance	2002	D Drop C	mute	1970-01-01