DirectCsound implements this feature for program changes now. 
Bank changes doesn't do anythinq with current version, and the instrument number limit is
127.
However it is possible to send bank changes to an external midi devices by means of a
controller 0 message.

nunativs wrote:
> 
> Hi all,
>         Can someone save me a bit of time and let me know if Csound can respond to
> Midi program and/or bank change messages.  For instance if I have an orc
> with 100 instruments(presets),  by changing midi program numbers like
> number 50 do I go to instrument 50? How about bank changing to get past the
> 128 instrument limit?
>         Thanks for any help,
>         Ken Locarnini

-- 
Gabriel Maldonado