If you have a good ear, you can also use Chatot pitches to verify your seed (and advance the frame), which works anywhere in the game.
Check out Smogon's new Doubles
Black 2 FC:
My Pokécheck Pokémon
RNG is kind of like firing a gun. Why shoot blindly in every direction until you're lucky enough to hit the target when you can just take the time to aim properly and hit it with one shot?