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
Introduccion A La Cartografia	Panda			3:15	Sangre Fria	2013	Eb Standard	mute	1970-01-01
Introduced Species	Hands Like Houses			4:06	Unimagine	2013	Custom Tuning	mute	1970-01-01
Invader Invader	Kyary Pamyu Pamyu			4:25	Nanda Collection	2013	Custom Tuning	mute	1970-01-01
Invidious	Revocation			4:33	Revocation	2013	Eb Standard	mute	1970-01-01
Invigoration	A Night In Texas			1:50	Invigoration (EP)	2013	AEADG	mute	1970-01-01
Invincible	Amaranthe			3:13	The Nexus	2013	C Standard	mute	1970-01-01
Ironheart	CROW'SCLAW			4:33	Resonance of the Nickel Strings	2013	D Drop C	mute	1970-01-01
Irresistible	Deafheaven			3:16	Sunbather	2013	E Standard	mute	1970-01-01
Is It Any Wonder	Keane			3:05	The Best Of Keane	2013	D Drop C	mute	1970-01-01
Isolated Insanity	Guttural Slug			3:30	Megalodon	2013	Custom Tuning	mute	1970-01-01
Isolation Point	Sentinel			3:32	The History Weave	2013	Custom Tuning	mute	1970-01-01
It Gets Funkier III	Vulfpeck			3:10	My First Car	2013	E Standard	mute	1970-01-01
It Has To Be This Way	Jamie Christopherson			2:56	Metal Gear Rising: Revengeance	2013	C# Drop B	mute	1970-01-01
It Has To Be This Way	Jimmy Gnecco			2:58	Metal Gear Rising: Revengeance - Vocal Tracks	2013	C# Drop B	mute	1970-01-01
It Is True	Havok			4:56	Unnatural Selection	2013	Eb Standard	mute	1970-01-01