Complex sentence: Another development of the MIDI specification gaining wide adoption is MPE (MIDI Polyphonic Expression): a method of using MIDI which enables devices with several dimensions of continuous per-note control to interact with MPE-compatible synthesizers and software.
Split into simpler sentences: Another development of the MIDI specification gaining wide adoption is MPE (MIDI Polyphonic Expression). This is a method of using MIDI that enables devices with several dimensions of continuous per-note control to interact with MPE-compatible synthesizers and software.