Just a quick note to say that it appears Pure Data is running on the Linux Distro. 
Logged into the Riotboard through ssh and running XMing (windows machine) I firstly installed puredata-core:
sudo apt-get install puredata-core
and then installed the puredata package itself:
sudo apt-get puredata.
It is outputting audio through the ALSA.
I set up a simple patch to play a sine wave with frequency changed by a slider and it all works fine.
