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
Pitch Black Intrusion	Masahiko Kimura/William Geesdorf			3:09	Castlevania: Dawn of Sorrow OST	2021	E Standard	mute	1970-01-01
Pitch Black Intrusion	Michiru Yamane			4:16	Castlevania: Dawn of Sorrow OST	2005	E Standard	mute	1970-01-01
Poison Mind Fingerstyle	Kinuyo Yamashita/Max_depa			1:52	Castlevania I OST	2011	E Standard	mute	1970-01-01
Praying Hands	Konami Kukeiha Club			3:18	Castlevania Belmont's Revenge	1991	E Standard	mute	1970-01-01
Prelude	Hidenori Maezawa			1:47	Castlevania III: Dracula's Curse OST	1989	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
Reincarnated Soul (Rock Version)	Yasushi Asada			3:37	Castlevania Bloodlines (Sega Genesis)	1993	E Standard	mute	1970-01-01
Riddle	Hidenori Maezawa/Wolfe Gothmog			2:26	Castlevania III: Dracula's Curse OST	1989	E Standard	mute	1970-01-01
Ripe Seeds (Plant Castle)	Hidehiro Funauchi			1:26	Castlevania II: Belmont's Revenge Soundtrack	1991	Drop D	mute	1970-01-01
Ruined Castle Corridor	Michiru Yamane			3:14	Castlevania Harmony of Despair OST	2010	Drop D	mute	1970-01-01
Silent Prison	Norikazu Miura			4:05	Castlevania: Portrait of Ruin Original Soundtrack	2007	E Standard	mute	1970-01-01
Simon's Theme	Konami Kukeiha ClubHaawke			3:26	Castlevania Dracula X (Disc 2)	2013	E Standard	mute	1970-01-01
Slash	Akira Sōji			3:21	Castlevania Rondo of Blood OST	1993	E Standard	mute	1970-01-01
Stream	Hidenori Maezawa			1:26	Castlevania III: Dracula's Curse OST	1989	E Standard	mute	1970-01-01
Successor of Fate - Theme of Juste Belmont	Michiru Yamane			2:06	Castlevania: Harmony of Dissonance OST	2002	E Standard	mute	1970-01-01