By Peter Anderson 1. Where you sit determines the water’s alphabet. In the everyday shade where the horsetails grow, a white wave washes-washes-washes over a fallen tree. The letter “s” is shaped like moving water and sounds like steam rushing through a kettle spout. Right here anyway, “S” is this creek’s favorite letter. Yes, Yes, Yes. But it likes to make music—splashh-shooshh-shooshh-splashh—wherever it can find an “H” or two to run with. This is what the creek has to say. But wait. There’s more. Little waves that murmur through quiet shallows gurgle and slurp onto the ground below your feet.…