Xpantastic!

> So this might not be a prob because the Xpander/Matrix12 has more and in
> theory, all what´s more in these machines would be unused for Matrix 1K
> patches,- but ...
> I only refer to the modulators available in the modulation matriss of a M1K
> !
> So, the 1st thing what´s different is the mod-matiss.

It is a problem somewhat, because the extra parameters inthe XP
patches have to bse set to something.
Zero is *probably* a safe bet, unless a 0 causes the sound to change.

> The most important difference is, M1K deals different w/  waveforms and  the
> waveshaping parameter decides which kind of waveform the oscillator creates
> in the end,- this is what a Xpander and Matrix 12 cannot do.

Why?

Boith synths have the same basic wavehsapes, the XP/M12 have noise in
VCO2 as well.
These can be selected in the patch.
Now- the DCOs on the M1k wont sound the same as the VCOs in the
XP/M12, even for the same wavsehape & frequency settings, but there's
nothing
we can do about that (not easily, anyway)

> As mentioned before in another post, - I did this programming,-
> Xpander>Matrix and vice versa manually for some patches and IMO, this was
> one of my most time consuming and boring programming experiences fo all the
> time because of all the comparison.

Why ? XPander single patches will go directly into an M12 via sysex.

> I doubt this can be done by a simple command line proggi, - it must be a
> more "inelligent" program which exactly knows the differences in the voices
> and so on, not forget to mention, the enduser has to "tell" the program what
> he wants then.

a configuration file could be read to make the decisions that a gui
otherwise would provide.

> To 1.)
> Even if parameters map directly, they don´t scale the same,- speeds of LFOs,
> envelopes, ramps are different p.ex.

> All your questions are right
>
> In the end the result is a different sounding patch you have to edit again
> anyway and by using your ears and taste.

This will have to be done no matter what method is used.
The synths are just too different for the patches to be ported and
expect to sound the same.
Myabe some basic boring patches might, but both synths have matrix
modulation. The more complex patches are likely to sound too
different.

> 2.)
> Most factory patches, in the Xpander and/or the M1K, don´t have the simplest
> controllers implemented which you need all day, - this is p.ex. sustain
> pedal (both) and pitchbend-ranges on your demand (Xpander),- you´d have to
> program a lot of usefull stuff anyway yourself.
> Sometimes, the controller setups only demonstrate what the machine is able
> to do and sometimes it makes no musical sense in daily work.

I dont even have a sustain pedal ;-)