in new york again

Coincidentally, i went to new york again. Just a coincidence because i just used a new york picture for my last journal.  Anyways at battery park at the very bottom edge of manhattan, my cousin showed me this square thing that she had just discovered recently.  When you step on a square it plays a note like a bell or a xylophone.  As i jumped from square to square long the outside edge, the tone of the notes got higher and higher meaning the frequencies were increasing.  I must have been the driving frequency, i think, every time i stepped on a square creating a forced vibration.  the note never lasted very long because i was stepping on the metal square which was the sound board.  Every time i pounced on a square i created a vibration but was absorbed by my leg so the sound quickly died out.  What also could have made the note audible was a resonator underneath the metal plates like in a xylophone so the note played is louder. It was fun to jump on!