Hello Derek, This is something that has been on my TODO list for tapiir for a long while... I think MIDI control would be nice, but it's 7-bit data range is a bit of a problem. Of course it is possible to work around that with multiple controls per value, but for from ideal. What other possibilities does PD offer? Maybe writing to a named pipe (fifo)? I could easily implement the input part in tapiir. Or maybe it would make more sense to write an PD object that incapsulates tapiir? I do not know however, if it is possible to use a non-PD graphical UI with a PD object. Maarten > I have been enjoying Tapiir quite a bit, and would like to intergrate it > into a performance situation alongside PD & Jack. My question is, what > are the possibilities for external control of Tapiir? i.e. : can I send > it messages [from PD, for example] which could either change parameters, > or use a different .mtd file? If so, what kind of method or protocol > would work best?