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
But The Regrets Are Killing Me	American Football			3:57	American Football	1999	E Standard	mute	1970-01-01
But The Regrets Are Killing Me	American Football			3:57	American Football	1999	Custom Tuning	mute	1970-01-01
Damn Regret	The Red Jumpsuit Apparatus			2:48	Dont You fake It	2006	E Standard	mute	1970-01-01
Eternal Regret	Rose Funeral			3:02	Crucify. Kill. Rot.	2007	C# Drop B	mute	1970-01-01
Guilt And Regret	Sentenced			3:47	The Cold White Light	2002	D Standard	mute	1970-01-01
La Belle Dame Sans Regrets	Sting			5:08	Mercury Falling	1996	E Standard	mute	1970-01-01
Lake of Regret	Pain Confessor			3:03	Turmoil	2004	C Standard	mute	1970-01-01
Last Regret	Paradise Lost			4:27	Faith Divides Us - Death Unites Us	2009	Eb Standard	mute	1970-01-01
Live Without Regrets	Amon Amarth			5:13	Surtur Rising	2011	B Standard	mute	1970-01-01
Nevere Regret	Here comes the Kraken			4:03	Hate Greed and Death	2008	Custom Tuning	mute	1970-01-01
No More Regrets	Arch Enemy			4:07	War Eternal	2016	C Standard	mute	1970-01-01
No Regrets	Dope			3:30	No Regrets	2009	D Drop C	mute	1970-01-01
No Regrets	Rage			4:55	Speak Of The Dead	2006	D Standard	mute	1970-01-01
Oceans of Regret	Cain's Offering			6:26	Gather the Faithful	2009	E Standard	mute	1970-01-01
Old Ghosts / New Regrets	Parkway Drive			2:51	Atlas	2012	C Drop Ab	mute	1970-01-01