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Q: 

IOS. How do I sync audio to graphics like GrooveMaker?

I have been playing with the most excellent GrooveMaker - http://www.groovemaker.com/home - on iPad and marveling at how well the graphics sync to the audio. I will be building a imaging app where I need music to drive short animated loops. Can someone suggest what GrooveMaker might be doing and how that might be applied in a more general way?

Thanks,
Doug

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