I notice in the manual, certain MIDI slider metadata operations can be
filtered by a certain MIDI channel, like `keyon` uses the velocity of a
given key on a given channel.

But IMO, these kinds of operations seem geared towards a non-standard way
of using a MIDI signal. Most useful mono- or poly- synths would want to use
the general
keywords with special meaning: `freq/key`, `gain/vel`, and `gate` to drive
the usually needed MIDI parameters in, for instance, a synthesizer signal
chain.

The problem I am having is: I'd like to pair a custom Faust synth with an
outboard analog monosynth. Ideally, I could assign Faust to listen only on
a certain MIDI channel.
As it is, it seems like I have to do the opposite: Faust will respond to
_all_ channels (not ideal) and I make the hardware synth respond to MIDI
channel 2. They are isolated only
by the fact that they are listening on different MIDI ports (otherwise, the
Faust synth would be "hearing" both channels and trying to respond to
both). What I have works for now,
but let's say I want 2 Faust synths -- they'd both be responding to all
channels that particular virtual port is listening on.

So, in short: is there an easy way to make a running Faust synth instance
listen only to a particular MIDI channel when it's designed to use the
keywords `freq`, `gain`, and `gate`,
per the docs? How easy would it be to hack Faust or add a feature for users
for this if not?

Aaron Krister Johnson
Music, etc.:
https://soundcloud.com/aaron-krister-johnson
https://soundcloud.com/filtercreed
https://www.youtube.com/channel/UC_utjGYbSizWE0dNyr0Vdmg
https://aaronkristerjohnson.bandcamp.com/
http://www.untwelve.org
Code:
https://github.com/akjmicro <http://www.untwelve.org>
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