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
Rosanna (No Bass)	Toto			5:49	Toto IV	1982	E Standard	mute	1970-01-01
Rosas	La Oreja de Van Gogh			3:59	7	2003	E Standard	mute	1970-01-01
Roudou Sanka	Momoiro Clover Z			4:47	5th Dimansion	2013	Custom Tuning	mute	1970-01-01
Runesansu	Soutaisei Riron			3:48	Hi-Fi Anatomia	2009	E Standard	mute	1970-01-01
Rusalka	Rotting Christ			4:38	Kata ton Daímona Eautou	2013	B Standard	mute	1970-01-01
Ryoume Hirakeba Kikyou Saku	UNDEAD CORPORATION			3:41	Oni Togizoushi	2011	AEADG	mute	1970-01-01
S-S-S-Saturday	Bowling For Soup			3:08	Fishin' For Woos	2011	E Standard	mute	1970-01-01
SA	SA			3:18	SA	2006	D Standard	mute	1970-01-01
SAKURA MEMORIES	Poppin'Party			4:21	イニシャル/夢を撃ち抜く瞬間に! Special Edition	2020	E Standard	mute	1970-01-01
SAKURA SKIP	fourfolium			3:54	NEW GAME! OP	2016	E Standard	mute	1970-01-01
SAMWISE SUK MEH	The Uncle Joe Show			0:49	The Uncle Joe Show	2020	BEADG	mute	1970-01-01
SARA	FENCE OF DEFENSE			4:38	CITY HUNTER Dramatic Master	1989	E Standard	mute	1970-01-01
SATSUGAI	D.M.C			3:30	Makai Yugi	2008	Custom Tuning	mute	1970-01-01
SAVAGES	Ice Nine Kills			3:02	The Silver Scream	2018	C# Drop B	mute	1970-01-01
SAVE The World	Toby Fox			1:56	Undertale OST	2015	E Standard	mute	1970-01-01