Vintage Japanese Black Laquer Inlaid Music Box with Key

Description

--abalone inlaid box
-7 1/4" long; 5 3/4" wide and 3 3/4" tall
-no nicks or chips
-music works but is slow and maybe that is the unknown song?
-inscribed on bottom but not sure if Japanese or Chinese
-fabric is cushion and could be a sewing box
-has unusual key to lock45.00