Ableton Forum

In Ableton's description of Max for Live, they talk about a "button matrix device" that enables the APC40 to control the step sequencer:

"Max for Live comes with a device that turns the button matrix of the APC40 or Launchpad into a hardware interface for programming MIDI sequences. You can set and clear notes in a MIDI clip just as you would with an 808 or analog step sequencer."

Where is the "button matrix device" that enables the APC40 and step sequencer to work together?

You could use live.step or live.grid depending on what you want to do with the object. In order to make a step sequencer like the Monome, you would need to use something that can generate a sequence, like seq with something that can grab the midi values from the APC. You would then want to sync that to a metro. This all sounds very complicated but it is really not. To try and create a simple sequencer to start out, I would recommend looking at live.step as it has a lot of built in functionality and is very easy to understand. Just remember you are going to have to grab the input from your APC (midi), process it someway in your patch and then output it back to the APC (midi). There may be other ways to interface with the APC in the future through the control_surfaces object, but so far it is undocumented.

Mike

Thanks for the tips!