Does your train station have a concert hall, and an internationally celebrated pianist to play in it? New York’s does: “Vanderbilt Hall, cavernous and echo-y, is not an ideal acoustical environment for serious piano listening.” But Yefim Bronfman, teaming with a New York food bank to raise money to fight hunger, tackled the tricky acoustics with a morning rush hour recital, performed in front of a crowd of jaded Big Apple commuters.