This is the second of three tutorial series on Pd. The first one shows how to
use Pd to do "control" computations.  This one shows the time-domain audio
processing features.

The patches are numbered as in "A01.sinewave.pd" -- the letter A means
the first "chapter", and the 

Here is an approximate table of contents...

A.  sinusoids
    oscillators
    amplitudes
    frequency and pitch
    FM

B. wavetable synthesis and sampling

C. control and audio computation
    analog-style sequencing
    monophonic keyboard synthesizer
    sample and hold
    envelope following

D. envelopes and polyphony
    ADSR envelope
    log/linear conversion
    additive synthesis

E. synthetic waveforms, classic and modern
    pulses
    rectangles and sawtooth waves

F. filtering and modulation (!?)

G. delays

H. formant synthesis

J. strategies
    quartic curves in envelopes
    triggering notes from qlists
    order of execution and block size
    
