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
Heavy Metal Guitar School P.1	Lesson Guitar			5:04	unknown	1999	E Standard	mute	1970-01-01
Heavy Metal Never Dies	Iron Savior			4:23	The Landing	2011	E Standard	mute	1970-01-01
Heavy Metal Pirates	Alestorm			4:28	Black Sails At Midnight	2009	C Standard	mute	1970-01-01
Heavy Metal Soldiers	Iron Angel			3:03	Hellish Crossfire	1985	E Standard	mute	1970-01-01
Heavy Metal Thunder	Sex Machineguns			5:27	HEAVY METAL THUNDER	2005	E Standard	mute	1970-01-01
Heavy Metal in the Night	Dream Evil			4:58	Gold Medal In Metal CD1	2002	D Standard	mute	1970-01-01
Heavy Metal: The Black and Silver	Blue Öyster Cult			3:23	Fire of Unknown Origin	1981	E Standard	mute	1970-01-01
Heavy Pendulum	Cave In			5:12	Heavy Pendulum	2022	Custom Tuning	mute	1970-01-01
Heavy Rain	ZHIEND			6:15	Echo	2015	E Standard	mute	1970-01-01
Heavy Rain Melancholy	Utsu-P			4:26	CD-R	2013	Custom Tuning	mute	1970-01-01
Heavy Rotation	AKB48			4:42	Heavy Rotation	2010	E Standard	mute	1970-01-01
Heavy Soul	The Black Keys			2:11	The Big Come Up	2002	Drop D	mute	1970-01-01
Heavy Violence	Toshiro Masuda			3:15	Naruto	2007	E Standard	mute	1970-01-01
Heavy Water	Foals			4:32	Antidotes	2008	E Standard	mute	1970-01-01
Heavy duty	Spinal Tap			4:29	This is Spinal Tap	1984	E Standard	mute	1970-01-01