The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead.

[1j01]

I have a branch where I started switching to AudioWorkletNode: https://github.com/1j01/guitar/tree/worklet (latest commit: f77d309)

State of this branch: basically working with worklet, but...

1. createScriptProcessor is used in tuna.js anyways, so it will need
   updating in order to actually do away with the warnings,
   and avoid future bit rot.
   ScriptProcessorNode deprecation warnings Theodeus/tuna#88
2. String bending doesn't work
3. Maybe there's an error that can occur where fret is undefined?
   Note implicit assignment at play: (@fret)->
   Note there's GuitarStringProcessor::play and GuitarString::play

Tuna.js relies on ScriptProcessorNode, however, someone has created a fork that uses audio worklets, so it may be worth picking up this work again.