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
1000Kai Urunda Sora	Poppin'Party			5:36	Tokimeki Experience!	2017	E Standard	mute	1970-01-01
B.O.F	Poppin'Party			3:43	Christmas no Uta	2017	E Standard	mute	1970-01-01
Breakthrough!	Poppin'Party			4:41	Breakthrough!	2020	E Standard	mute	1970-01-01
Christmas no Uta	Poppin'Party			4:41	Christmas no Uta	2017	E Standard	mute	1970-01-01
CiRCLING	Poppin'Party			4:26	CiRCLING	2018	E Standard	mute	1970-01-01
Double Rainbow	Poppin'Party			4:10	Poppin'Party 10th Single	2018	E Standard	mute	1970-01-01
Dreamers Go!	Poppin'party			4:21	Dreamers Go!/Returns	2019	E Standard	mute	1970-01-01
Girl's Code	Poppin'Party			5:27	Girl's Code	2019	E Standard	mute	1970-01-01
Hachigatsu no if	Poppin'Party			4:40	TimeLapse	2017	E Standard	mute	1970-01-01
Hanazono Electric Guitar	Poppin'Party			3:23	Hanazono Electric Guitar	2017	E Standard	mute	1970-01-01
Happy Happy Party!	Poppin'Party			4:48	Kirakira datoka Yume datoka Sing Girls	2017	E Standard	mute	1970-01-01
Hashiri Hajimeta Bakari no Kimini	Poppin'Party			4:24	Hashiri Hajimeta Bakari no Kimini /Teardrops	2017	E Standard	mute	1970-01-01
Home Street	Poppin'Party			3:50	Kizuna Music	2018	E Standard	mute	1970-01-01
Initial	Poppin'Party			4:58	Initial/Yume wo Uchinuku Shunkan ni!	2020	E Standard	mute	1970-01-01
Introduction	Poppin'Party x Ayasa			3:48	Introduction	2021	E Standard	mute	1970-01-01