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
Underneath A Sullen Moon (tab version)	Shadow Of Intent			4:42	Melancholy	2019	C Drop Ab	mute	1970-01-01
Underneath The Sky	Oasis			3:24	The Masterplan	1998	E Standard	mute	1970-01-01
Underneath Your Clothes	Shakira			3:46	Laundry Service	2001	E Standard	mute	1970-01-01
Underneath the Stars	The Defiants			5:15	The Defiants	2015	Eb Standard	mute	1970-01-01
Underneath the Waves	Strapping Young Lad			3:45	City	1997	D Drop C	mute	1970-01-01
Understand	Asian Kung-Fu Generation			3:48	Kimi Tsunagi Five M	2003	E Standard	mute	1970-01-01
Understanding Love as Loss	Silent Planet			3:32	Everything Was Sound	2016	Custom Tuning	mute	1970-01-01
Understanding Silence	Good Tiger			3:36	A Head Full of Moonlight	2015	E Standard	mute	1970-01-01
Understanding What We've Grown To Be	We Came As Romans			4:27	Understanding What We've Grown To Be	2011	Custom Tuning	mute	1970-01-01
Understanding in a Car Crash (Ramen's Ver)	Thursday			4:29	Full Collapse	2001	Drop D	mute	1970-01-01
Understatement	New Found Glory			3:13	Sticks and Stones	2002	E Standard	mute	1970-01-01
Undertale Meets Bass	Davie504			1:59	Davie504	2016	E Standard	mute	1970-01-01
Undisclosed Desires	Muse			4:01	The Resistance	2009	E Standard	mute	1970-01-01
Undress for Success	Mclusky			2:48	Mcluskyism	2006	E Standard	mute	1970-01-01
Undress to Confess	Powerwolf			3:31	Call of the Wild	2021	Custom Tuning	mute	1970-01-01