The standard way of doing this is to use the Finder to drop the app on the Script Editor app. This will display the app’s scripting dictionary in a fancy browser window.
Try it out with TextEdit first, just so you know what to expect.
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You can also open an application’s scripting dictionary directly from the Script Editor, as it will try to load the executable file/script (or crash) if the dropped application doesn’t have one.
support [dot] apple [dot] com/kb/PH26956
That's actually just a MIDI processor. Really cool plugin but not an application scripter.
Thanks for the AppleScript tips. Turns out there isn't much in Logic Pro X. Only...
Application Object : The top level scripting object.
renderpreview method : Render an iLife Preview for a project
renderpreview [file] : Reference to the project