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
Planet Y Is Alive!	Ayreon			6:05	The Source	2017	B Standard	mute	1970-01-01
Platinum	Maaya Sakamoto			4:15	Cardcaptor Sakura Original Soundtrack 4	2000	E Standard	mute	1970-01-01
Play With Me	Dan Salvato			2:58	Doki Doki Literature Club! (Original Soundtrack)	2017	E Standard	mute	1970-01-01
Playing With the Boys	Kenny Loggins			3:59	Top Gun (Original Motion Picture Soundtrack)	1986	Drop D	mute	1970-01-01
Please Love Me ... Once More	Akira Yamaoka			1:56	Silent Hill 3 Original Soundtr	2003	E Standard	mute	1970-01-01
Pool Of Booze Booze Booza	Volbeat			3:41	The Strength The Sound The Songs	2005	D Standard	mute	1970-01-01
Potter's Field	Anthrax			5:00	Sound Of White Noise	1993	E Standard	mute	1970-01-01
Prelude	Uematsu, Nobuo			0:58	All Sounds of Final Fantasy I - II	1989	E Standard	mute	1970-01-01
Pretty Green	The Jam			2:39	Sound Affects	1980	E Standard	mute	1970-01-01
Priscilla's Song (The Wolven Storm)	The Witcher 3: Wild Hunt			3:24	The Witcher 3: Wild Hunt Soundtrack	2015	E Standard	mute	1970-01-01
Professor E. Gadd's Theme (Luigi's Mansion)	Kazumi Totaka/Nintendo			1:45	Luigi's Mansion Soundtrack	2001	E Standard	mute	1970-01-01
Prologue	Michiru Yamane			1:35	Castlevania: Symphony of the Night Original Soundtrack	1997	E Standard	mute	1970-01-01
Promise	Akira Yamaoka			4:45	Silent Hill 2 Original Soundtrack	2001	E Standard	mute	1970-01-01
Promise	Riverside			2:47	Eye of the Soundscape	2016	E Standard	mute	1970-01-01
Protect Mission	Transformers Devastation			2:23	Transformers Devastation Soundtrack	2015	E Standard	mute	1970-01-01