Nashville Arena Tour

Ever since the new minor league baseball stadium opened in Nashville, TN I've wanted to take a walking tour to visit all three sites. The Nashville Sounds, the AAA affiliate of the Oakland Athletics, play at First Tennessee Park. The Nashville Predators, the cities NHL team, play at the Bridgestone Arena. The Tennessee Titans play at Nissan Stadium where, it seems, they haven't won a game in years. Where should I park to minimize the walking distance between the three facilities?