When you hover over the play button it tells you that it doesn't regenerate "unless regeneration is required"
What does this really mean because if you load an existing song that is not frozen and press play without making any changes to the song then it always regenerates anyway as shown by the progress bar at the top of the screen. The next time you press play it doesn't regenerate.

I know you can stop regeneration by freezing but what is the point of "unless regeneration is required" when it seems that unfrozen songs always regenerate the first time they are played after loading. This means that if I forget to freeze a good arrangement before saving it is going to change the first time I re-load and play it.

Tony