1. A method of using a digital wavetable audio synthesizer to create delay-based audio effects, comprising the steps of: (a) generating a first digital audio signal from data stored in a first external wavetable memory; (b) storing said first digital audio signal in said synthesizer; (c) writing said first digital audio signal from said synthesizer to a second external wavetable memory; (d) reading said first digital audio signal from said second external wavetable memory a select time after step (c); and (e) generating a second digital audio signal, representing a delayed version of said first digital audio signal, from said first digital audio signal read from said second external wavetable memory; wherein there is no requirement that said first digital audio signal be written to a section in said first external wavetable memory used exclusively for storing said data.