You can download MidiMidi below. Please check the compatibility with your other software before you purchase a license.
You can test MidiMidi even without MaKey MaKey by using your normal keyboard!
Download MidiMidi 1.1.0 for Windows
Works with Windows Vista / 7 / 8 and up.
32 bit and 64 bit supported.
Download MidiMidi 1.1.0 for macOS
Works with macOS 10.7 and up.
64 bit processor required.