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
Zawsze tam, gdzie Ty	Lady Pank			4:18	Zawsze tam, gdzie Ty	1990	E Standard	mute	1970-01-01
Zazdrosc	Hey			2:06	Fire	1993	E Standard	mute	1970-01-01
Zdrajca Metalu	Nocny Kochanek			4:36	Zdrajcy metalu	2012	D Standard	mute	1970-01-01
Zed's Boss Battle	Jimmy Urine, Akira Yamaoka			8:19	Lollipop Chainsaw	2012	E Standard	mute	1970-01-01
Zelda II Medley	Year200X			6:26	We Are Error	2008	Custom Tuning	mute	1970-01-01
Zemlya v iluminatore(Trava u doma)	Zemlyane			4:47	Zemlya v illuminatore	1999	E Standard	mute	1970-01-01
Zen	Strapping Young Lad			5:05	Alien	2005	D Drop C	mute	1970-01-01
Zen Zen Zense	MattyyyM			4:40	Kimi no Na wa MattyyyM Rock Cover	2018	E Standard	mute	1970-01-01
Zero	Yeah Yeah Yeahs			4:30	It's Blitz!	2009	E Standard	mute	1970-01-01
Zero (Solo Only)	Keiki Kobayashi			1:35	Ace Combat Zero: The Belkan War Original Soundtrack	2006	E Standard	mute	1970-01-01
Zero Percent	My Chemical Romance			2:46	Danger Days: The True Lives of the Fabulous Killjoys	2010	E Standard	mute	1970-01-01
Zero Pharaoh	Everything Everything			3:42	Get To Heaven	2015	E Standard	mute	1970-01-01
Zero Signal	Fear Factory			5:56	Demanufacture	1995	BEADG	mute	1970-01-01
Zero no Kiseki Super Arrange Version - Inevitable Struggle	Yukihiro Jindo			4:30	The Legend of Heroes Zero no Kiseki Super Arrange Version	2011	E Standard	mute	1970-01-01
Zeta - Toki wo Koete	Ayukawa Mami			3:40	Soundtrack	1985	E Standard	mute	1970-01-01