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
Orbital Elements	Obscura			5:25	Cosmogenesis	2009	Custom Tuning	mute	1970-01-01
Orca's Theme	Masami Ueda, Hiroshi Yamaguchi, Rei Kondoh and Akari Groves			2:47	Okami OST	2006	E Standard	mute	1970-01-01
Ordsmedar Av Rang	Kvelertak			4:25	Kvelertak	2010	E Standard	mute	1970-01-01
Organ Farmer	King Gizzard & The Lizard Wizard			2:48	Infest the Rats' Nest	2019	C# Standard	mute	1970-01-01
Ornstein & Smough Theme	Utamaru			3:20	Dark Souls (OST)	2014	E Standard	mute	1970-01-01
Otome Ryouran Mai Sakihokore	Hinabita(Hinatabi Bitter Sweets)			3:41	Chocolate Smile Girls!!	2015	E Standard	mute	1970-01-01
Otoño Medieval	Rata Blanca			2:37	Rata Blanca	1988	Eb Standard	mute	1970-01-01
Otpusti Menia	Elya Chavez			3:58	Unknown	2012	Drop D	mute	1970-01-01
Otvet - Lutaya Mest	Korol I Shut			3:49	Kak V Staroy Skazke	2001	E Standard	mute	1970-01-01
Oumei Silence	Shinigiwa Satellite			5:14	DEAD SILENCE	2013	Drop D	mute	1970-01-01
Our Day Will Come	Julie London			2:27	The End Of The World	1963	E Standard	mute	1970-01-01
Our Lawyer Made Us Change the Name of This Song So We Wouldn't Get Sued	Fall Out Boy			3:10	From Under the Cork Tree	2005	Drop D	mute	1970-01-01
Our Time Is Now	Gojira			4:34	Our Time Is Now	2022	D Standard	mute	1970-01-01
Out Of The Game	Razor			2:48	Violent Restitution	1988	C# Standard	mute	1970-01-01
Out Of Time	Blur			3:57	Think Tank	2003	E Standard	mute	1970-01-01