I'm trying to make this stop when i press a button but not to sure how to implement it.

Also, how can I make the Metro start when the audio starts playing?

I'm having issues trying to get Pd-extended to work with Aubio. I have already tried the tutorial from https://aubio.org/pd-aubio/installation I'm installing it on my Mac and this has been taking forever. I followed the tutorial completely and it's not working.

Here's a screenshot.

Were you ever able to solve this?