Real-time software synthesizer based on the SoundFont 2 specs
Current version requires: macOS >= 10.12
vmpk is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.