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
Rusalka	Rotting Christ			4:38	Kata ton Daímona Eautou	2013	B Standard	mute	1970-01-01
Rusty Bucket Bay	Grant Kirkhope			1:51	Banjo Kazooie	1998	E Standard	mute	1970-01-01
Rybalka	Rychagi Mashin			4:10	Vtorzhenie	2013	Drop D	mute	1970-01-01
Ryd/Dark Red	Steve Lacy			6:13	Steve Lacy's Demo	2017	E Standard	mute	1970-01-01
Rylo Ken	Sunrise Skater Kids			2:42	Friendville	2016	E Standard	mute	1970-01-01
Ryoko's Theme	Seikou Nagaoka			3:50	Tenchi-Muyo! OVA Best (Volume 1)	1997	D Standard	mute	1970-01-01
Ryokugan no Jealousy	Dark PHOENiX			5:19	TouHou	2014	E Standard	mute	1970-01-01
Ryoujoku no Ame	DIR EN GREY			4:05	THE MARROW OF A BONE	2007	Eb Drop Db	mute	1970-01-01
Ryouken no Shuusei Acoustic	Yugo Kanno			1:58	Psycho-Pass Soundtrack	2012	E Standard	mute	1970-01-01
Ryoume Hirakeba Kikyou Saku	UNDEAD CORPORATION			3:41	Oni Togizoushi	2011	AEADG	mute	1970-01-01
Ryumka vodki na stole	Grigorij Leps			4:21	Na strunah dozhdya...	2002	E Standard	mute	1970-01-01
Ryumka vodki na stole	Grigoriy Leps			4:27	Na strunah dozhdya	2002	E Standard	mute	1970-01-01
Rückkehr	Die Ärzte			2:57	Drei Mann - Zwei Songs	2019	Eb 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