This is a great resource for beginners who are a little intimidated by the mathematics involved in synthesis - by Peter Elsea way back in 1996.
http://artsites.ucsc.edu/ems/music/tech_background/TE-11/teces_11.html
Topics Covered
- Hertz
- Exponential Functions
- Logarithms
- Decibels
- The Spectral Plot
- Envelopes
- Spectral Envelopes
- Frequency Response
- Waveforms
- Sine Waves
- The Harmonic Series
- Temperament