There is a music staircase in a mall in my hometown in China. I couldn’t find any videos for that mall, but here is something similar. Stepping on different stairs makes different notes.
This is one of the golf training aids that uses sounds to indicate something is wrong with your swing. This particular example is for if your swing is too long, but there are some other ones that monitor rotational angles and separation between upper and lower body.
This one does not have much interaction but I just wanted to put it here. Japanese singing toilets were very interesting…
