Play an accordion recording by resizing your browser window
I don't know if you can call it 'play' when you are only influencing if the accordion is sounding or not. I would call it 'listening' to accordion by resizing your browser window. I understand that if the user did have control it would not sound as good, but you could do it.The size of the window vertically would control the pitch, so if I have a small sliver vertically it should be high pitched and if my browser window is tall(vertically) it should be low pitched.The speed of the change in size horizontally should be how fast the air passes through the instrument.If I have it vertically large and slowly drag it to the left  it should let out a low drone, if I go quickly it should be a low burst, etc.Still very cool!