This can be stated in active form. Alternate translation: "No one in your city will ever again hear the sound that harpists, musicians, flute players, and trumpeters make" (See: [[rc://en/ta/man/translate/figs-activepassive]])
"no one will hear them anymore in you." Not being heard here means that they will not be there. Alternate translation: "they will not be in your city anymore" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Not being found there means that they will not be there. Alternate translation: "No craftsman of any kind will be in your city" (See: [[rc://en/ta/man/translate/figs-metonymy]])
The sound of something not being heard means that no one will make that sound. Alternate translation: "No one will use a mill in your city" (See: [[rc://en/ta/man/translate/figs-metonymy]])