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
Under The Banner	MITHOTYN			5:56	King Of The Distant Forest	1998	D Standard	mute	1970-01-01
Under The Boardwalk	The Drifters			2:47	Biggest Hits	1964	E Standard	mute	1970-01-01
Under The Boardwalk	The Drifters			2:44	Under The Boardwalk (Single)	1964	E Standard	mute	1970-01-01
Under The Bridge	Red Hot Chili Peppers			4:29	Blood Sugar Sex Magic	1991	E Standard	mute	1970-01-01
Under The Bridge	Red Hot Chili Peppers/Igor Presnyakov			3:37	Blood Sugar Sex Magik	2009	D Drop C	mute	1970-01-01
Under The Guillotine	Kreator			4:41	Pleasure To Kill	1986	D Standard	mute	1970-01-01
Under The Gun	Movements			3:30	Feel Something	2017	Drop D	mute	1970-01-01
Under The Influence	Rusty Cooley			6:51	Rusty Cooley	2002	Eb Standard	mute	1970-01-01
Under The Knife	Rise Against			2:47	The Sufferer And The Witness	2006	Eb Standard	mute	1970-01-01
Under The Milky Way	The Church			5:02	Starfish	1988	E Standard	mute	1970-01-01
Under The Red Sky	lovebites			5:59	Battle Against Damnation	2018	E Standard	mute	1970-01-01
Under The Rose	Kiss			4:50	Music From the Elder	1989	E Standard	mute	1970-01-01
Under The Sin Of Grief	Blood Stain Child			5:44	Silence of Northern Hell	2002	D Standard	mute	1970-01-01
Under The Sun	Bury Tomorrow			3:33	Runes	2014	C# Drop B	mute	1970-01-01
Under This Flag	God Forbid			5:48	IV: Constitution of Treason	2005	D Drop C	mute	1970-01-01