Dear List,

A member of the list from Quebec suggested this week that I wrote a patch to change the sequence of effects on the fly in a multi-effects patch (we both use Pd for live effects with a guitar).
I've come up with a solution (attached) to this problem, using a matrix from the IEM library as suggested in an earlier thread. I have also made a small GUI to move the effects and show what the current sequence is.
As far as I know it is completely glitch-free. It's for 4 effects only at the moment, but it could easily be adapted to any size. The key in my opinion lies in the algorithm that converts a sequence of effects (say, 4 2 3 1) into the right matrix.

Any suggestion welcome!

Cheers,

Pierre