notes: global synth option?

[jonnyhotchkiss]

sonic-pi/app/server/ruby/lib/sonicpi/lang/sound.rb

Line 48 in acbcc55

amp_slide: "The duration in beats for amplitude changes to take place",

Hi I just found notes: option on example 4 in lang:synth

Should this be added to the top, or is this option intentionally omitted?

Also it appears this isn't working in the autocomplete. Not sure if related, by design, or oversight... another option to play with!

Thanks!

Another fan and aspiring future contributor 🤞