Merge pull request #1 from MagicJuly/master

modularity LLpractice.js
update ignore
update ignore
Merge pull request #2 from MagicJuly/master

modularity LLpractice.js and fix some issues
delete some files
Miss bug fixed

Fix miss bug caused by on peek the first note in the buffer array.
Improve hit fx.
miss bug fixed

another miss bug fixed
Merge pull request #1 from yjhatfdu/master

synchronize with author