Forums > MaxMSP

max/msp to ableton via rewire and midi

Mar 23 2009 | 6:12 am

Hello everyone. I’m working on a project that includes loops in Ableton. However, after looking through the tutorials on this website and elsewhere, I can’t seem to find any instructions on how (or even if it’s possible) to control other functions in Ableton through values from Max i.e. controlling the BPM to within a certain number value or triggering other loops in multiple tracks all through events in Max. Any help would be greatly appreciated. Thanks in advance.

Mar 23 2009 | 11:23 am

You can route MIDI from Max to Live (or vice versa) using IAC on the Mac. I can’t remember the Windows equivalent: MIDI Yoke?

Mar 23 2009 | 1:45 pm


you may want to check

and download – it controls BPM so that Ableton syncs to a live drummer.
Feel free to chop out the bits you need – e.g. setting the Midi port (make sure you have MaxMSP1 Remote ON in Ableton preferences)

also, I use pitchbend message for BPM

Any questions let me know..


Mar 23 2009 | 2:21 pm

Multi part answer:
To get basic rewire control, look at the rewire~ object.
That and IAC/MidiYoke’d midi is all you *really* need:
set up all actions you want in Live to respond to some appropriate midi CC or note msg.,,,


One can use OSC sent to Live calling the "LiveAPI" …
these calls are wrapped nicely in Python by the "LiveAPI" site:
but a quick look at the py files reveals that the underlying OSC calls are straightforward, and I see no reason they could not be sent directly from Max to Live via tcp/udp…the api looks very comprehensive: give it a look…(and don;t fear that they are written in python: it’s a very clear, nderstandable language, and the data will be clearly separatable from the language action.)

My recomendation: see if existing rewire functionality and midi can perform all you wish; by configuring the app’s midi response, you can do almost you could wish.

The osc calls are surely the rest of the equation…check out the LiveAPI :

ymmv,enjoy,l&k, etc.

Mar 23 2009 | 6:10 pm

I’ve always found it simple to route Midi to Live without being aware of an IAC driver.

try sending note on e.g. [60 64] to 1st input of [midiformat] then to [midiout]
you need to click on Midiout to set `from MaxMSP 1"
then the Midi map in Ableton needs to be set – click on the Live button – switch back to Max – and send the message. Undo the Live midi map and your message should control that function.

(purely on a getting things to work level – the IAC and LiveAPI seem like good tools for interconnecting applications with Midi)


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Forums > MaxMSP