QJackMMC is a Qt based program that can connect to a device or program that emits MIDI Machine Control (MMC) and allow it to drive JACK transport, which in turn can control other programs like Ardour, Hydrogen, and Rosegarden. JackCtlMMC is a slightly simpler command-line version of QJackMMC. Version 4 adds several new features including a nearly-full rewrite of QJackMMC. New features include: - Jack MIDI support (optional) - Autoconf support for easy configuration / packaging - "Always listening" rewrite for QJackMMC - Message area within QJackMMC to view any incoming MMC messages - Lash support is now optional - Cleaner and clearer interface The project page / FAQ is here: http://jackctlmmc.sourceforge.net/ Direct download link: http://sourceforge.net/projects/jackctlmmc/files/jackctlmmc/version%204/jac… Enjoy! -- The MMC team