Prerequisite
1. Adventure Creator : fully-featured Unity extension that takes the headache out of developing your own adventure games.
2. Midi Tool Kit Pro : Add Midi music to your application. See here.
3. And also : download the zip file, extract ActionMidi.cs script and add to the folder Assets\AdventureCreator\Scripts\Actions in your Unity project (path could change depending your settings):
The dedicated MPTK actions will be found in the custom category. See below example of actions available with MPTK.
Have Fun !