for heroku
add socket.io
modify createing buffer
revert creating buffer/ change stereo to mono
testing heroku
modify SynthServer to Transform Stream
add envelope & cvin
modify osc/lfo
add keybord trigger
add sequencer
sync all params
modify
modify buffer length(->256)
modify CVIn's chunk
initial env's value at trigger
delete socket.io
add note sequencer
forget commit...
fix about env