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
Reconquering the Throne	Kreator			4:16	Violent Revolution	2001	D Standard	mute	1970-01-01
Relive the Magic, Bring the Magic Home	Reggie and the Full Effect			2:43	Promotional Copy	2000	Eb Standard	mute	1970-01-01
Remembering Sunday	All Time Low			4:19	So Wrong, It's Right	2007	E Standard	mute	1970-01-01
Ring	Janne Da Arc			4:15	DNA	2000	Eb Standard	mute	1970-01-01
Ring (Backing Track)	Buckethead			3:34	Caterpillar	2014	Eb Standard	mute	1970-01-01
Ring My Bell	Anita Ward			3:17	Songs Of Love	1979	E Standard	mute	1970-01-01
Ring My Bell	Anita Ward			3:35	Songs of Love	1979	E Standard	mute	1970-01-01
Ring Of Steel	Nocturnal Rites			6:43	Tales of Mystery and Imagination	1998	E Standard	mute	1970-01-01
Ring Ring	ABBA			3:07	Ring Ring: Deluxe Edition	2013	E Standard	mute	1970-01-01
Ring of fire	DragonForce			3:18	Maximum overload	2014	E Standard	mute	1970-01-01
Ringing Bloom	Roselia			5:35	FIRE BIRD	2019	Drop D	mute	1970-01-01
Ringo Buys a Rifle	The Dead Milkmen	Bass2		2:22	Beelzebubba	1988	E Standard	mute	1970-01-01
Ringo Mogire Beam!	Otsuki Kenji and Zetsubou Shoujo tachi			4:51	Zan Sayonara Zetsubou Sensei Op	2009	C# Drop B	mute	1970-01-01
Ringside	Tsunku			1:43	Rhythm Heaven Fever	2011	E Standard	mute	1970-01-01
Rite of Spring	Angels and Airwaves			4:25	I-Empire	2007	E Standard	mute	1970-01-01