Rain for iPhone is a minimalistic audio visual composition you can play yourself. Tap to create black sound stripes and double tap to create phases. Shake to create colored beat stripes, and double swipe to change background loop.
 

 

The longer a stripe the lower its pitch. After creating a stripe, use your second finger to alter the length.

The app transmits all sequences as OSC messages on port 4444.
 

Demo Video

 

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