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
Purple Reign	Dance Gavin Dance			4:42	Downtown Battle Mountain II	2011	Drop D	mute	1970-01-01
Push Pull Destroy	Battlecross			4:23	Pursuit of Honor	2011	D Standard	mute	1970-01-01
Pussyfoot Miss Suicide	Children of Bodom			4:13	Relentless, Reckless Forever	2011	D Drop C	mute	1970-01-01
Puta Vida	SuperSubmarina			2:53	Realimentacin	2011	E Standard	mute	1970-01-01
Pyramid God	Septicflesh			5:19	The Great Mass	2011	C Standard	mute	1970-01-01
Pyre	Opeth			5:42	Heritage	2011	E Standard	mute	1970-01-01
Pyro-compulsive	World Under Blood			4:46	Tactical	2011	D Standard	mute	1970-01-01
Quasar	Beheading Of A King			3:04	Quasar Preserving Legacy (EP)	2011	D Drop C	mute	1970-01-01
Queen of Hearts	Fucked Up			4:39	David Comes to Life	2011	E Standard	mute	1970-01-01
Quicksand	The Story So Far			2:44	Under Dirt and Soil	2011	E Standard	mute	1970-01-01
Quiero Morirme en Ti	Mago De Oz			4:22	Hechizos Pocimas Y Brujerias	2011	E Standard	mute	1970-01-01
RPG	School Food Punishment			4:07	Prog-Roid	2011	Drop D	mute	1970-01-01
Raggamuffin	Selah Sue			2:42	Selah Sue	2011	E Standard	mute	1970-01-01
Ragnarök	Brymir			6:00	Breathe Fire to the Sun	2011	E Standard	mute	1970-01-01
Rain	Blackmill			6:03	Reach For Glory	2011	E Standard	mute	1970-01-01