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 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 Your Pillow	It Bites			5:28	Eat Me in St Louis	1989	D Standard	mute	1970-01-01
Underneath the Gun	Limp Bitzkit			5:50	Results May Vary	2003	Custom Tuning	mute	1970-01-01
Underneath the Stars	The Defiants			5:15	The Defiants	2015	Eb Standard	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 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	Toby Fox			6:24	Undertale OST	2015	E Standard	mute	1970-01-01
Undertale Main Theme	Toby Fox/Isac Saleh			4:01	Undertale OST	2018	E Standard	mute	1970-01-01
Undertow	As I Lay Dying			3:59	Shaped By Fire	2019	D Drop C	mute	1970-01-01
Undertow	Sara Bareilles			4:48	Careful Confessions	2004	E Standard	mute	1970-01-01
Underwater Garden	Septicflesh			6:51	Mystic Places Of Dawn	1994	D Standard	mute	1970-01-01