Noodling and not sure what scale you just played? Play it into Maestronom.
The AI Scale Detector listens, ranks the scales and modes that fit (in this take: G Mixolydian 37%, C Ionian 20%, F Lydian 13%) and lights the winner up across the neck. It catches quick mode changes too.
The Scale Detector is PRO. Try PRO: go.codrlabs.com/maestronom