Does anyone here work with MuBu?

Here's what I want to do. I created a series of .SDIF files using Michael Klingbeil's SPEAR, and I basically want to do what SPEAR does but with a lot more capability: specifically, I want to select individual snippets (those represented graphically in SPEAR) algorithmically and (among other things) distribute them into a multichannel space -- statically and, if possible, also dynamically. I want to be able to select by average frequency, by duration, by amplitude, etc.

I wonder if MuBu is the right environmental tool for such things and would appreciate any tips.