https://vgmdb.net/db/covers.php?do=view&cover=403293
ab (acoustic bass?) - missing
koukin (probably kanji reading of 口琴/Jew's Harp) - missing
strings Musicians coordination - missing
https://vgmdb.net/db/covers.php?do=view&cover=99378
Administrator
https://vgmdb.net/db/covers.php?do=view&cover=103508
Soundtrack Producers
https://vgmdb.net/db/covers.php?do=view&cover=440122
Dobro Guitar
Special Coordinate
===
edit:
- ab added as Acoustic Bass alias
- Strangely enough strings musicians coordination is registed as an alias of String Musician Coordinator, but I cannot link an artist to the Strings Musicians Coordination.