This shows 6 plain cosine curves, as well as several that respond to sound. Try downloading this and experimenting with it. There are many ways to modify it, creating different shaped curves. There are some scripts that can be replaced in sprite 1 to change its behavior, and you can try attaching the scripts in sprites 2 and 3, by themselves, or with sprite1. They are responsive to sound, but work differently from sprite 1. ***This only works in the flash player or when downloaded, with an active microphone. EDIT: This does not seem to work online at all. Try downloading it.