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
Humming	Turnover			4:01	Peripheral Vision	2015	E Standard	mute	1970-01-01
Humming Bird	Kotobuki Minako			3:51	K-ON! Character Image Song Series - Kotobuki Tsumugi	2009	E Standard	mute	1970-01-01
Humming The Bassline	Hideki Naganuma			2:55	Jet Set Radio SEGA Original Tracks	2000	Drop D	mute	1970-01-01