How To Make A Noise: a Comprehensive Guide to Synthesizer Programming is perhaps the most widely ready book about synthesizer sound programming. It is a comprehensive, practical guide to sound design and synthesizer programming techniques using:

subtractive (analog) synthesis

frequency modulation synthesis (including phase modulation and ring modulation)

additive synthesis

wave-sequencing

sample-based synthesis

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The book and the accompanying patches are available as a free download.

Click here to get the download.