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
Courage	Haruka Tomatsu			4:16	Sword Art Online II OP2 Single - courage	2014	E Standard	mute	1970-01-01
Courage	MattyyyM			4:11	Sword Art Online II OP 2 Rock Cover	2018	Drop D	mute	1970-01-01
IGNITE	Eir Aoi			4:06	Sword Art Online II OP Single - IGNITE	2014	E Standard	mute	1970-01-01
Ignite	MattyyyM			4:06	Sword Art Online II (Opening Full) MattyyyM Cover	2019	E Standard	mute	1970-01-01
No More Time Machine	LiSA			4:52	Sword Art Online II	2014	E Standard	mute	1970-01-01