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
Power, Wisdom, Courage (Zelda Medley)	Powerglove			5:53	Metal Kombat for the Mortal Man	2007	Eb Standard	mute	1970-01-01
Prepare To Land	The Supernaturals			4:17	It Doesn't Matter Anymore	1997	E Standard	mute	1970-01-01
Proof	Paramore			3:18	Paramore	2013	Drop D	mute	1970-01-01
Protège Moi	Placebo			3:20	Once More With Feeling	2004	E Standard	mute	1970-01-01
Purina Hall Of Fame	Propagandhi			4:10	Today's Empires Tomorrow's Ashes	2001	Custom Tuning	mute	1970-01-01
Rage and Forgiveness	Aephanemer			5:45	Memento Mori	2016	D Standard	mute	1970-01-01
Rayando el Sol	Maná			4:15	Falta Amor	1990	E Standard	mute	1970-01-01
Re-Animator	Rigor Mortis			3:23	Rigor Mortis	1988	E Standard	mute	1970-01-01
Reality	Lost Frequencies			2:41	Less Is More	2016	E Standard	mute	1970-01-01
Red Wings Over Baron	Powerglove			7:50	Metal Kombat For The Mortal Man	2007	Custom Tuning	mute	1970-01-01
Regorge in the Morgue	Vomitory			2:36	Opus Mortis VIII	2011	D Standard	mute	1970-01-01
Regression/Overture 1928	Dream Theater			5:43	Metropolis Pt.2: Scenes From A Memory	1999	Custom Tuning	mute	1970-01-01
Relapse	Polaris			3:21	The Mortal Coil	2017	Custom Tuning	mute	1970-01-01
Return To The Eve	Celtic Frost			4:08	Morbid Tales	1984	E Standard	mute	1970-01-01
Revelation	Stryper			4:32	No More Hell To Pay	2013	Eb Drop Db	mute	1970-01-01