This device is 1 of 7 devices included in the Dynamic Tempo Control Collection.
Max for Live device to find the right tempo by tapping before the BPM change will be applied. The BPM change in Ableton Live can be applied via on TAP number X automatically.
About The Author
You need some programming/support in setting up an Ableton Live set?
I can help you to find a set-up which works for your approach.
Just get in contact via firstname.lastname@example.org !