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
About a Girl (Unplugged)	Nirvana			3:04	MTV Unplugged in New York	1993	Eb Standard	mute	1970-01-01
All Apologies (Unplugged)	Nirvana			4:26	MTV Unplugged in New York	1994	Eb Drop Db	mute	1970-01-01
Come As You Are (Unplugged)	Nirvana			4:16	MTV Unplugged in New York	1994	Eb Standard	mute	1970-01-01
Dumb (Unplugged)	Nirvana			2:46	MTV Unplugged in New York	1993	Eb Standard	mute	1970-01-01
Jesus Doesn't Me For A Sumbeam	Nirvana			4:40	MTV Unplugged in New York	1994	Eb Standard	mute	1970-01-01
Lake of Fire (Unplugged)	Nirvana			3:01	MTV Unplugged in New York	1994	Eb Standard	mute	1970-01-01
Lass mich mie mehr Los	Sportfreunde Stiller			4:19	MTV Unplugged in New York CD2	2009	E Standard	mute	1970-01-01
Oh Me	Nirvana			3:30	MTV Unplugged In New York	1993	Eb Standard	mute	1970-01-01
On a Plain (Unplugged)	Nirvana			3:31	MTV Unplugged in New York	1993	Eb Drop Db	mute	1970-01-01
Plateau	Nirvana			3:42	MTV Unplugged In New York	1993	Eb Standard	mute	1970-01-01
Something In The Way (Unplugged)	Nirvana			4:04	MTV Unplugged in New York	1994	Eb Drop Db	mute	1970-01-01
The Man Who Sold The World (E STD)	Nirvana			4:24	MTV Unplugged in New York	1994	E Standard	mute	1970-01-01
Where Did You Sleep Last Night (Unplugged)	Nirvana			5:09	MTV Unplugged in New York	1994	Eb Standard	mute	1970-01-01