Analogue-sequencer

> so- while the machine is "in record", the notes that come in on the
> appropriate channel are sent to the track that's being edited, while
> notes & controllers on other channels go whistling straight through,
> being FTS'd on the way.

At the moment, when you enter record, incoming notes on any channel are
re-channelised to the channel of the track being recorded on, assuming
record mthru is active.
In the new implementation, this behaviour will still be the default, but
you'll be able to set the record input channel to a specific channel rather
than 'any', which is implicit ATM.
In that case, messages arriving on the chosen channel will be re-channelised
to the recording track.
All other channels will pass thru according to the normal midi thru
settings, i.e. no pass through, pass all on a specific channel, or pass all
on the original channel, with FTS or not.

I *think* that addresses what you mean by...

> can you offer a choice somehow, between "track channel" & "base
> channel" for this feature? 

etc., but maybe I didn't get it.

> now- can we change the in-use scale with a programme change on the
> base channel?

Remote control of FTS via the 'Rem' channel is TBI. It's likely to be a cc
rather than a program change.

> being able to change the part (& thus the FTS settings)
> by program change would suffice, I think.... but what happens if you
> send this program change while the p3 is in "live-record"?

Good question.
The logic of these sorts of things is better worked out in practice, I
think.
So, we'll find out.

Cheers,
Colin f