Hi Iain,
with some trepidation I should mention that about ten years ago I had
fun writing a Hammond B3 emulation.  It's not exactly "sample code"
because I wanted to get as close to the B3 sound as I could, so it has
a lot of "tweaks".  For instance it uses the exact frequencies of the
Hammond tone wheels (which are not true equal temperament), and has a
"Leslie" and Hammond-style reverb.  I didn't really write it to be
transparent, or with "good coding style", so make of it what you will.
I suspect someone with more Csound skill than I could improve it even
further.

It's all at https://goodeveca.net/RotorOrgan.  There are a couple of
mp3s there generated by the code, so you can get some idea of the sound.
The page is dated 8 years ago, and I haven't touched the code since
then, though I do use it on occasion.  As written, it is intended for
MIDI input -- specifically my M-Audio Axiom 60 keyboard -- but should
be easily modifiable.  I should also mention I normally use my own
Haiku software that gives me on-screen drawbars and things.

I ported Csound 6 to the Haiku OS [never heard of it, have you...(:-)]
but I'm afraid I don't intend to do that with Csound 7.  Too much work
with too little reward.  (And I am nearly 90 years old, so I only
occasionally program these days!)

Cheers,
        -- Pete --

On Sat, Jan 31, 2026 at 09:38:08AM -0800, Iain Duncan wrote:
> Hello Csounders, I am looking for example code for use in some music
> education tools for which I want sustained, pitch-clear sounds in various
> registers. While I'm pretty experienced in Csound, I always find good
> examples surprise with things I don't know about yet! Unfortunately, the
> state of online search is not what it used to be, sigh.
>
> If anyone has favourite examples of hammond organ, rhodes, or other
> sustained keyboard sounds that you imagine would work well for creating
> clear pitch beds, I'd love to hear which they are!
>
> Thanks
> iain
>
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