Max Magic Microtuner is a Macintosh application (OS X and OS 9 Carbon) for creating and editing microtonal scales and keyboard mappings; as a special feature it allows Max/MSP and Pluggo users to generate their own alternate tuning external objects by converting specially formatted text files into C-compiled Max/MSP MIDI-to-frequency externals. You can create, import, edit and export 128-note MIDI Tuning Standard keymap files (.syx, .mid) compatible with the Native Instruments FM7 softsynth and with all software and hardware synthesizers supporting the MTS format; you can also import and export native Scala (.scl) microtuning files, export Korg OASYS PCI audio card tuning files (.tun), and export Native Instruments Pro-52/Pro-53 tuning files (.p5m).