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
Si Amaneciera	Saratoga			5:57	El Clan de la Lucha	2004	Eb Standard	mute	1970-01-01
Sieben Raben	Saltatio Mortis			4:02	Aus der Asche	2007	Drop D	mute	1970-01-01
Siempre Hay Esperanza	Sade			5:17	Stronger Than Pride	1988	E Standard	mute	1970-01-01
Siggy Pop	Rabea Massaad			2:55	Grinding Gears 1	2018	C Drop Ab	mute	1970-01-01
Sight Of You	Pale Saints			5:40	The Comforts Of Madness	1990	E Standard	mute	1970-01-01
Sil Vous President	Pmarusama			3:13	Sunny	2021	E Standard	mute	1970-01-01
Silhouettes in Disguise	Kansas			4:27	Power	1986	E Standard	mute	1970-01-01
Silk and Steel	Savatage			3:03	Gutter Ballet	1989	E Standard	mute	1970-01-01
Silo	Rabea Massaad			4:43	Grinding Gears 3	2021	D Drop C	mute	1970-01-01
Sin	Nuclear Assault			3:28	Game Over	1986	E Standard	mute	1970-01-01
Sins Of The Father	Black Sabbath			4:55	Dehumanizer	1992	Custom Tuning	mute	1970-01-01
Sirenas	Savia			4:13	Savia	2006	E Standard	mute	1970-01-01
Sirens	Savatage			3:42	Sirens	1985	Drop D	mute	1970-01-01
Sista Moosesha	Masaya Matsuura			3:42	PaRappa the Rapper 2 Original Soundtrack	2001	E Standard	mute	1970-01-01
Skies And Dream	Thousand Leaves			3:41	Daydream	2009	Eb Standard	mute	1970-01-01