To install taglib-sharp, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install taglib-sharp
To see what files were installed by taglib-sharp, run:
port contents taglib-sharp
To later upgrade taglib-sharp, run:
sudo port selfupdate && sudo port upgrade taglib-sharp
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.