Identifying pentatonic scales - by Ethan Hein

They are simple but not always easy

Guitar Fretboard: Master the Notes on the Neck

Identifying added-note chords - by Ethan Hein

Is the blues scale major or minor? - Quora

Blues harmony primer

Is the major scale the same as the pentatonic scale? - Quora

The pentatonic box The Ethan Hein Blog

Music Theory: Why are there 3 minor scales? – Aaron Searle

Guitar Fretboard: Master the Notes on the Neck

As an example, playing a song in the key of C (C,F, G) and wanting to add some soloing using the pentatonic scale (or any scale) do I stick to the C

Why does every ordinary guitarist play only pentatonic scales? - Quora

Identifying pentatonic scales - by Ethan Hein

soundfly – NYU Music Experience Design Lab