Identifying pentatonic scales - by Ethan Hein

They are simple but not always easy

What defines a blues scale on guitar, and how is it different than

The music theory of Hey Jude

guitar The Ethan Hein Blog

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

Identifying added-note chords - by Ethan Hein

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

Ethan Hein – NYU Music Experience Design Lab

Blues harmony primer

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Why are pentatonic scales used for instrumental solos? - Quora

What is the application of both pentatonic major and minor scales

Dr. Ethan Hein on LinkedIn: Identifying I, IV and V chords

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