MOTM

>Does anyone have an opinion one way or another about this? On one
>hand, just using blocks makes a lot sense, mostly because it can get
>pretty ambiguous as to what group things belong in. What does the
>frequency shifter belong in? Osc or Filter? On the other hand, I think
>it's a little easier to read with some catagorization.
>
>In my example patches I use a circle (osc) to both represent a 440
>(it's in self res) and a 300.

Signal sources (oscillators, noise generators, microphone) are often 
represented with a circle. Modifiers (VCF, VCA, inverter) are often 
represented with a triangle (like an op amp). Controllers (ADSR, 
keyboard, sequencer, bias source) are often represented with a 
rectangle. But eventually even this breaks down because LFOs can be 
considered controllers at low frequency or signal sources at audible 
frequency. I think one needs to use the appropriate symbol for the 
module on a per-patch basis. Ask yourself, "Self, is this generating 
an audio signal, generating a control signal, or modifying a signal?" 
Other conventions are that audio signals enter at the left and exit 
at the right of a module. Control signals exit at the left and enter 
at the bottom of a module (but I've got many examples showing control 
signals exiting anywhere). I'll post some scans within the next few 
days.