Live processing frog sounds

As mentioned by Kate, I am working on a max patch to live process the sound of percussion frogs. Our basic idea was to turn the sound of one of these frogs into the sound of many, like a chorus of croaking frogs. For the beginning of the frog's life cycle, a simple short delay will probably be used with a small percussion frog.

However, when the frog is at its adult stage, it will be joined by this "chorus" of processed sound using a larger percussion frog. My initial idea for this was to create multiple delay lines from the same source and vary the delay time slightly. This creates a phasing effect where one frog sound slowly morphs into as many different frog sounds as there are delay lines.