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
Rebellion	Daisuke Ishiwatari			4:10	BlazBlue Original Soundtrack	2008	Eb Standard	mute	1970-01-01
Red Streamer Battle	Yoshito Sekigawa, Shoh Murakami, Yoshiaki Kimura, Hiroki Morisihita, Fumihiro Isobe			2:50	Paper Mario: The Origami King Original Soundtrack	2020	D Standard	mute	1970-01-01
Refreshing Morning	Atkahiro Unisuga			2:21	The Legend of Heroes: Sen no Kiseki Original Soundtrack	2013	E Standard	mute	1970-01-01
Ricco Harbor	Koji Kondo			3:06	Super Mario Sunshine Original Soundtrack	2002	E Standard	mute	1970-01-01
Ride On	Nobuo Uematsu			3:06	Final Fantasy VIII Original Soundtrack	1999	E Standard	mute	1970-01-01
Rivers In The Desert (VGmPeeta)	Shoji Meguro			3:49	Persona 5 Original Soundtrack	2017	E Standard	mute	1970-01-01
Romantic Love	Masaya Matsuura			3:37	PaRappa the Rapper 2 Original Soundtrack	2001	E Standard	mute	1970-01-01
Roxas	Yoko Shimomura			3:34	Kingdom Hearts 2 Original Soundtrack	2006	E Standard	mute	1970-01-01
Royal Days	Shoji Meguro			4:21	Persona 5 Royal Original Soundtrack	2019	E Standard	mute	1970-01-01
SELF CONTROL!!	Saint Snow			3:58	Love Live! Sunshine!! TV Anime Original Soundtrack:Sailing to the Sunshine	2016	D Drop C	mute	1970-01-01
Saikyou Saigo no Shitou	Takanashi Yasuharu			1:59	Fairy Tail Original Soundtrack Vol.4 - CD1	2013	E Standard	mute	1970-01-01
Sakuragaoka Joshi Koutou Gakkou Kouka (Rock Ver.)	Houkago Tea Time			3:02	K-ON!! Original Soundtrack Vol. 2	2010	E Standard	mute	1970-01-01
Salamander	Takanashi Yasuharu			2:19	Fairy Tail Original Soundtrack Vol.1	2010	E Standard	mute	1970-01-01
Sara	Alph Lyla			2:05	Breath of Fire Original Soundtrack Special Box	2016	E Standard	mute	1970-01-01
Scenery of Spira	Nobuo Uematsu			2:52	"Final Fantasy X" Original Soundtrack, Disk 1	2001	E Standard	mute	1970-01-01