Merge pull request #3 from therewasaguy/master

updating tone
make shapes last for a while
Merge branch 'master' of github.com:karenpeng/yayaya
put sound back in
tweaking sonify
Merge remote-tracking branch 'upstream/master'
output triangle numbers
output triangle numbers
getting freeze callback
tweaking arp.js
Merge remote-tracking branch 'upstream/master'
output alpha data
Merge remote-tracking branch 'upstream/master'
presentation verison
presentation verison