- check F.Moore's Elements of Computer Music for panning algorithms

- remove motex [pan~] from distros and replace with these Pd patches.

- write equal power panning object in Pd to replace motex [pan~]

- write pan_gogins~.c in Pd

- write all_about_panning, including graphs and discussion from 
  http://www.csounds.com/ezine/autumn1999/beginners/

- include vbap~ and other advanced panning methods