OH.. it seems that my suggestion was taken into consideration... :)

glad to see that.. :)

This is actually an interesting little toy. While it lacks the precision to easily make a specific sound being imagined, it demonstrates concepts like variable pitch, volume envelope, and wave form distinction between sine, triangle and square waves rather well with a drag-and-drop interface. This does appear well suited to teach school students some of the simpler parts of acoustic science. It's too bad there isn't support for colored noise generation. (The random waveform can't be adjusted tightly enough.)