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
All Apologies	Convoluted Tides			3:07	All Apologies	2012	D Drop C	mute	1970-01-01
All Apologies	Nirvana			3:58	In Utero	1993	Eb Drop Db	mute	1970-01-01
All Apologies (Unplugged)	Nirvana			4:26	MTV Unplugged in New York	1994	Eb Drop Db	mute	1970-01-01