✨ Come up with some basic maths nodes for manipulating signals.

[hayleigh-dot-dev]

At a minimum we'd want something like:

• neg
• add
• sub
• mul
• div

And maybe also logic nodes.

These can all be implemented withcombinations of gain nodes and constant source nodes, so we shouldn't have to dip into audioworket/scriptProcessorNode territory to do this. With a bit of thinking, it should be possible to copy a lot of what they did in Tone.js