Triggering Ableton clips via a MIDI track

[Norman Thibodeau <ncthib@yahoo.com>]

I want to launch Ableton audio clips via MIDI clips, and I'm trying to 
follow the steps given in some posts from 2007 between Zoe Keating and J E:

> - i make a midi track that has the output set to IAC midi driver on 
>channel 16.
> - then, make a controller talk on channel 16
> - using live's midi mapping, just select whatever function i want to 
>control
> - lastly, put the midi sequences in a clip and put that clip in the midi 
>track i created.
> - trigger the clip

The part where I'm at a loss is "make a controller talk on channel 16." 
The LED's tell me that my MIDI track's notes are firing, but not reaching 
any audio tracks.

Everything I can find about controllers and Ableton refers to physical, 
hardware controllers, not a way that a MIDI track could give orders to an 
audio clip.

Like that old movie line, "We have ways to make you make you talk." I need 
a way.

Norman T