A problem I have run into during sets is needing to change the time signature between songs. Mainly this is for the click track. Now you could just record your own click and route it just like you would any other track (which still has transition problems of its own), but I still am amazed that Ableton hasnt created a feature similar to the their BPM title function that allows you to change tempos between master slots by simply renaming that master clip 100BPM (or what ever the tempo just replace the number). The only way to accomplish this (that I know of) is to manually reach over and type in the new time signature via you laptop keyboard. This can be pretty annoying! I’ve talked with Ableton and they say this is an issue they are addressing in future releases, but nothing for the time being… well… here is my fix (with its own drawbacks)…
Change the sound of Lives built in metronome. Instead of an accent on the downbeat, have a static click sound (the same tone each click). By doing this you can transition between songs and as long as your BPM is set you wont need to change time sig’s. OK, and now for the DISCLAIMER - this really is only useful with the “play along” method I have mentioned before. If you are triggering clips on the fly in a set (see previous posts on how to do this) your “1 bar” (or how ever many you have your grace period set to) is thinking in terms of that actual time signature you have set. See the problem? So this really, as far as I know, is only useful if you are using live to compliment and existing layout of a song (meaning you dont change the way you play it).
How do you change that sound? Here ya go (thanks to some friends on the Ableton forum):
To find them on your Mac…
1. Right-Click (option click) on Live.app
2. Show Package Contents

3. Contents
4. App-Resources
5. Misc
You will see two files of interest… “Metronome.wav” and “MetronomeUp.wav”
Rename your “MetronomeUp.wav” to “MetronomeUpBackup.wav” (so you keep that file if you want to change it back). Next copy the “Metronome.wav” and paste it to your desktop. Change its name to “MetronomeUp.wav” and move it back into “Misc” folder you just copied it from. Whaaa-La. Now your click will be a static sound.

If you want to change it back simply delete the file you created and rename the backup file to its original file name.
And that is how you change time signatures in a set. Pretty simple eh?
** Check out previous “Ableton Live In Worship” posts for certain techniques mentioned above.