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 Gun	Limp Bitzkit			5:50	Results May Vary	2003	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
Undertow	Mr Big			4:51	What If	2011	Eb Standard	mute	1970-01-01
Underwater	Elephant Gym			4:04	Underwater	2018	E Standard	mute	1970-01-01
Underworld	Symphony X			5:51	Underworld	2015	D Standard	mute	1970-01-01
Undisclosed Desires	Muse			4:01	The Resistance	2009	E Standard	mute	1970-01-01
Undone	All That Remains			3:25	Overcome	2008	C# Standard	mute	1970-01-01
Undress for Success	Mclusky			2:48	Mcluskyism	2006	E Standard	mute	1970-01-01
Undressed	Tiamat			7:11	Clouds	1992	D Standard	mute	1970-01-01
Undying Fidelity	Signs of The Swarm			3:21	Vital Deprivation	2019	AEADG	mute	1970-01-01
Une somme de détails	Mass Hysteria			3:01	Une somme de détails	2007	D Drop C	mute	1970-01-01
Unearthed	Exumer			5:18	Rising From The Sea	1987	E Standard	mute	1970-01-01
Unemployable	Pearl Jam			3:09	Pearl Jam	2004	E Standard	mute	1970-01-01
Unemployed in Summertime	Emiliana Torrini			3:51	Love in the Time of Science	1999	E Standard	mute	1970-01-01
Unending Love	Mio Watanabe			4:34	None	1994	E Standard	mute	1970-01-01