It's not a huge project, only 21 tracks at the moment, but I'd rather not individually mute the 20 tracks that I want mute; it would be nice to be able to use the master and "exempt" one track, if you will, as the question suggests.
Can you think of any clever or obvious work-arounds for this, assuming there isn't a function? I haven't found one. Thanks! Hope you've enjoyed this question.