t
9
I mostly use hardware only this days, but I just grabbed my laptop to do a quick test with the following setup (using an ESI MIDIMATE II as the MIDI interface):
MacBook Pro running Live 9 OUT -> IN Machinedrum THRU -> IN Analog Four
When everything is properly configured (MIDI Sync set to On in the Live preferences for the appropriate port, TEMPO IN set to EXTERNAL and CTRL IN set to ON on the Machinedrum, CLOCK RECEIVE and TRANSPORT RECEIVE checked on the A4), both machines start playback immediately when I click “Play” in Live, are in sync immediately, and stay in sync even during tempo changes or when I stop/start Live.
Please note that Ableton Live does not at all sync well to external clock sources. If you want to use Live in your setup, you should really only ever consider using it as the clock master in your setup.