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
Invitations	Shakatak			4:24	Invitations	1982	E Standard	mute	1970-01-01
Involuntary Doppelganger	Archspire			3:57	Relentless Mutation	2017	BEADG	mute	1970-01-01
Involuntary Doppelganger	Archspire			3:49	Relentless Mutation	2017	Custom Tuning	mute	1970-01-01
Invoxhate	Benighted			3:31	Icon	2007	B Standard	mute	1970-01-01
Iolite	LIQ			5:14	None	2014	Custom Tuning	mute	1970-01-01
Ire Upon The Earth	Depths			3:53	Revelation	2012	Custom Tuning	mute	1970-01-01
Irgendwann bleib i dann dort (live)	STS			3:34	Songs an einem Sommerabend	1999	E Standard	mute	1970-01-01
Iris - End Theme	Tomohito Nishiura			5:39	Professor Layton and the Diabolical Box OST	2007	E Standard	mute	1970-01-01
Iris Of The Storm	Slash			4:03	World On Fire	2014	Eb Standard	mute	1970-01-01
Irish March (Arranged for Guitar)	Narciso Yepes			2:54	Guitar Music By: Brouwer, Carulli, Conge, Kuhnel, Robison & Sor	1979	E Standard	mute	1970-01-01
Iroboke Neko	Satoru Kousaki			2:46	Bakemonogatari (TV Anime) Ongaku Zenshu Songs & Soundtracks	2011	E Standard	mute	1970-01-01
Iroha Uta	Yora			4:05	None	2014	E Standard	mute	1970-01-01
Iron	Ensiferum			3:56	Iron	2004	E Standard	mute	1970-01-01
Iron Fist	Motorhead			2:58	Iron Fist Bonus Tracks	1982	Eb Standard	mute	1970-01-01
Iron Fist	Sodom			2:46	Persecution Mania	1987	E Standard	mute	1970-01-01