Sorry to hear that. What browser are you using? It works well for me in Chrome.
After the game loads you have to click the space bar to start playing.
Viewing post in A Measure of Jazz jam comments
It started working, it just took a while to load the first time I guess. This is a pretty neat game. The music and achievements add a lot of reactiveness to the players actions and trying to find a balance of objects can be entertaining. I did manage to find a hack where I could just hold the other side of the scale down with an object to line them up and it would count that as balanced. This a neat game with a fun atmosphere.