!! Warning: This hanjie is a linea, it is only logical with the constraint that the picture consists of a single curved line, thus each black cell has exactly two of its four nearby cell blacks (except the two ends) !!

I thought I heard the sweet melody of some truck. Time to cool off our palate...

Difficulty : ***

Tested, logical (as a linea).
Edge-logic can be useful.
Good blackenage.