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
Red Silence	Blaze Out			4:48	Headshot	2013	C# Standard	mute	1970-01-01
Red Skies	The Fixx			4:17	Shuttered Room	1982	E Standard	mute	1970-01-01
Red Sky	Aviana			4:05	Epicenter	2019	Custom Tuning	mute	1970-01-01
Red Sky	Thrice			4:17	Vheissu	2005	D Drop C	mute	1970-01-01
Red Sky Warning	Ice Nine Kills			4:08	Safe Is Just A Shadow	2010	Eb Drop Db	mute	1970-01-01
Red Socks Pugie	Foals			5:11	Antidotes	2008	E Standard	mute	1970-01-01
Red Soil	Dir En Grey			3:28	Uroboros	2008	Eb Drop Db	mute	1970-01-01
Red Solo Cup	Toby Keith			3:07	Clancy's Tavern	2011	E Standard	mute	1970-01-01
Red Stars	The Birthday Massacre	Bass2		3:45	Walking With Strangers	2007	Drop D	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
Red Swan	YOSHIKI feat. HYDE			4:25	Red Swan	2018	E Standard	mute	1970-01-01
Red Swan	Yoshiki, HYDE			1:32	Red Swan	2018	E Standard	mute	1970-01-01
Red Tide	Rush			4:42	Presto	1989	E Standard	mute	1970-01-01
Red Velvet	Four Leaf Studios			3:31	Katawa Shoujo OST	2012	E Standard	mute	1970-01-01
Red Water (Christmas Mourning)	Type O Negative			6:56	October Rust	1996	B Standard	mute	1970-01-01