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
Randy Sage - True American Hero	Blakfish			3:22	Champions	2009	Custom Tuning	mute	1970-01-01
Raping The Earth	Extreme Noise Terror			2:20	Rertro-bution	1995	E Standard	mute	1970-01-01
Raspberry Patriot feat. Srezcat & DJ NECOJITA & Kobaryo	Shinonome Interface			3:28	SUPER REVOLUTION	2021	Custom Tuning	mute	1970-01-01
Rationalist	August Burns Red			2:41	Constellations	2009	D Drop C	mute	1970-01-01
Rationalist	August Burns Red			2:41	Constellations	2009	D Drop C	mute	1970-01-01
Rats Return	Porcupine Tree			5:42	Closure/Continuation	2022	E Standard	mute	1970-01-01
Rats in the Walls	Strung Out			3:32	Transmission.Alpha.Delta	2015	Eb Standard	mute	1970-01-01
Ravenous	Atreyu			3:12	Congregation of the Damned	2009	D Drop C	mute	1970-01-01
Ravenwing	Altaria			4:30	Invitation	2003	E Standard	mute	1970-01-01
Ravetech Newworld	nao			4:28	Hyperdimension Neptunia ReBirth3 OP	2014	Drop D	mute	1970-01-01
Razorblade	The Strokes			3:40	First Impressions of Earth	2006	E Standard	mute	1970-01-01
Re-Animation	Sacrifice			3:51	Forward To Termination	1987	Eb Standard	mute	1970-01-01
Ready For Salvation	Kalmah			4:30	For The Revolution	2008	C# Standard	mute	1970-01-01
Ready To Fall	Rise Against			3:50	The Sufferer and The Witness Australian Tour Edition	2006	Eb Standard	mute	1970-01-01
Real Gone	Sheryl Crow			3:23	Cars (Original Motion Picture Soundtrack)	2006	E Standard	mute	1970-01-01