Unknown Musical Movement. 4th in Series.
Missing key, so unwindable, therefore unplayable, thus unknown.
Perhaps I should get permission to disassemble and figure out how those dots are mapped to produce the sound, and then figure out the tune. There are worse ways to waste time.
Status: Not mine to decide.
Kill-ratio: 20:3 or ~7:1
Alternate Title: Untitled Musical Movement No 143 for An Unknown Soldier.