Suggested Reading
Handmade Electronic Music - Nicholas Collins
Great for Beginners
A hands on approach tailored towards musicians
Covers the basics of common passive components and then eases the reader into circuit bending, oscillators, clock dividers, sequencers, etc.
The Art of Electronics - Paul Horowitz and Winfield Hill
Textbook, dry and technical approach
Gradually builds in complexity, beginning with basic components
For people who are hands on visual learners, this book provides great supplemental technical information
Small Signal Audio Design - Douglas Self
A great next step for people comfortable with the fundamentals of op-amp circuits
Covers low noise design for amplifiers, filters, EQ, compression, and distortion
The Design of Active Crossovers - Douglas Self
Similar to Small Signal Audio Design, but focuses on low noise, low distortion crossover filter design
Applicable to audio circuit design as a whole, and not just the design of active crossovers
Further Reading
Voltage Controlled Filters
SSI: VCF’s with SSI2164
THAT Corp: First Order State Variable Filters; Design Notes
Electro-Druid: Reconfigurable Filters; Pole Mixing