MIDIX .04 - is an extension which extends Note application built in your Newton.  Once MIDIX installed, Note will provide a new stationary which can store standard MIDI file along with some notes.  MIDI file can be played through Macintosh standard MIDI interface connected to the serial port.  MIDIX supports MIDI files in standard MIDI format 0 and 1. MIDIX requires Newton OS 2.0. Some of the new synthesizers or sound generators have a serial interface to connect directly to host computer.  If you have one of them, try to connect the same way as you do for Macintosh. Program view to control volume and patch for 16 channels. Remember volume and patch information even in empty note, then send it out by a tap on Play button.