To install mp3unicode, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install mp3unicode
To see what files were installed by mp3unicode, run:
port contents mp3unicode
To later upgrade mp3unicode, run:
sudo port selfupdate && sudo port upgrade mp3unicode
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.