One of my top tips for any new BiaB user is to get used to freezing tracks all the time.

I've always thought that 'play' should come with a warning sign if it intends to regenerate, because often you don't realise it's going to (e.g. if you change a chord temporarily but change it back before hitting play, it will still regen even though it's ostensibly the same - unless it's frozen, of course).