$2 on the App Store.
[watch demo video]
Check out this awesome user-made song -- and we're just scratching the surface of what's possible with noteplex!
Square nodes don't generate any pulses; X-nodes block pulses completely. Moving around nodes or changing their shape can radically alter a noteplex song!
You can also assign a finite "life" to nodes -- nodes that turn off or on after a certain number of pulses hit them. Your noteplex will change over time adding complexity and richness to your visual compositions.