Addendum: had lot of trouble using Bluesmirf in Max for Live and Max/MSP. The serial object tended to crash both Max and Ableton Live. Finally I set the profile of Bluesmirf to ‘1’ (slave) instead of the default ‘0’. The command is: S~,1
I also set the Baud rate to 115200 on both Bluesmirf and Max and since then it connects and closes fine. Again: start ZTerm right after Bluesmirf is powered, enter command mode with $$$ then set the profile and the Baud rate (see previous post).