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
2021 (Has Been so Fun) (2021)	Nick Lutsko			2:35	More Songs on the Computer	2019	E Standard	mute	1970-01-01
2024	Cage The Elephant			3:13	Thank You Happy Birthday	2011	E Standard	mute	1970-01-01
2045	MAN WITH A MISSION			3:49	Chasing the Horizon	2018	D Drop C	mute	1970-01-01
21	Annihilator			4:26	King Of The Kill	1994	E Standard	mute	1970-01-01
21 Flights	Heavy English			3:50	Pop Wasteland	2016	C Standard	mute	1970-01-01
21 Guns	Green Day			5:25	21st Century Breakdown	2009	E Standard	mute	1970-01-01
21 Letters	Delta Sleep			5:23	Twin Galaxies	2015	E Standard	mute	1970-01-01
213	Slayer			4:56	Divine Intervention	1994	Eb Standard	mute	1970-01-01
21:13	Coheed and Cambria			9:49	In Keeping Secrets of Silent Earth: 3	2003	Drop D	mute	1970-01-01
21st Century Breakdown	Green Day			4:43	21st Century Breakdown	2009	Eb Standard	mute	1970-01-01
21st Century Digital Boy	Bad Religion			2:52	Against The Grain	1990	E Standard	mute	1970-01-01
21st Century Schizoid Man/Mirrors	King Crimson			7:21	In the Court of the Crimson King	1969	E Standard	mute	1970-01-01
21stCenturySchizoidMan	King Crimson			7:03	In The Court Of The Crimson King	1969	E Standard	mute	1970-01-01
22 Acacia Avenue	Iron Maiden			6:39	The Number of the Beast	1982	E Standard	mute	1970-01-01
22 Faces	Periphery			3:53	Juggernaut: Alpha	2015	E Standard	mute	1970-01-01