And yes, the idea was to have them all in A with the last 3 tracks having the same tempo and time sig so that they might seamlessly blend during gameplay. Not sure if that's the right way to go or not, really.
As long as it was intentional, I don't think it's an issue! And if the goal was so that they could blend together seamlessly during gameplay, I think that enhances my view of the soundtrack even more. All three of those tracks would blend together well.
