======Spiral Synthesis======
{{metacard>}}
materials from Tracy Lind Petersen \\
{{tag>and_now_for_something_rather_different on-line_articles}}
~~META:title=Spiral Synthesis~~
~~META:desc=materials from Tracy Lind Petersen ~~
~~META:link=http://staff.washington.edu/bradleyb/spiralsynth/spiral.html~~