Thanks Michael and jmp for your explanations...

I just fired up my (simple) rg and noticed this, I'm in the middle of a 
long project to be finished tomorrow (actually finishing off the boring 
presentation thing right now), but thought I'd write to give a heads up, 
will happily give some feedback and debug support if needed from next 
week. At a quick look it seems the problem is also there if you are 
playing back, so maybe it's something more trivial like jpm suggests.

Thanks again for the quick replies
Lorenzo.

On 18/10/12 15:02, j...@it-he.org wrote:
> Quoting Lorenzo Sutton <lorenzofsut...@gmail.com>:
>
>> This is on 12.12
>>
>> I'm not sure what is causing this but I can't seem to set MIDI channels
>> ('Instrument' in rosegarden lingo) properly. If I set the Channel mode
>> from 'auto' (unfortunately the default) and change a channel this is not
>> used correctly.
>> Additionally the auto mode seems to re-activate itself even when 'fixed'
>> was selected after changing the channel ('instrument').
>
> I've found that you sometimes have to switch back and forth from fixed
> to auto and back, but it seems to be a fairly rare occurrence.  It
> occurs to me that it might be doing something like setting the
> drop-down but not actually using the setting itself under some
> specific circumstances.  I haven't yet sat down to investigate it.
>
>> On a side note: the Channel auto thing seems to have broken all my .rg
>> file previous to its introduction. Does this mean that it has backward
>> broken .rg files?
>
> Mine all seem to work, but obviously I have to go through and set them
> all to 'fixed' because most of the synthesizers are monotimbral or
> otherwise use a fixed channel allocation scheme (different organ
> manuals etc).
>
>> Honestly I'm not sure what the auto mode really is and what it's for.
>> Has it something to do with track # -> channel #? I may sound old school
>> but I like to have full control of my midi channels on a sequencer.
>
> I think it uses a round-robin channel allocation scheme, where it uses
> the first free channel.  That's handy on a GM synthesizer, but on
> everything else - basically all the expensive ones - it will make a
> mess.
>
>>
>> Lorenzo.
>>
>
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