In MetaTune, the Key/Scale changes are recorded on the notes automation lanes. This allows for custom scale automations.
To change the Key/Scale using automation in MetaTune, you'll need to change the Automation mode of the track to "Write" and select the Key/Scale during playback (like you would do for any other parameter). When this happens, you'll notice the automation lanes of each individual note change to On and Off respectively.
Changing the track automation mode is a little different in each DAW, but as an example, you can see how to automate the Key/Scale in Pro Tools:
- Click the Plug-in Automation View in MetaTune
- Add all parameters to the right column
- Enable write automation for the track
- Start playback and select the desired key/scale
NOTE: The correct key/scale will not be displayed in the lower lefthand corner after automation is written.
If you have any questions please contact support.