Identifying pentatonic scales - by Ethan Hein

They are simple but not always easy

Music Theory – NYU Music Experience Design Lab

Scale necklaces and symmetry

Music Theory: Why, when playing a 12-bar-blues progression (I-IV-V

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

The music theory of Hey Jude

John Coltrane The Ethan Hein Blog

If a guitarist is not well trained with the pentatonic scales

Guitar Fretboard: Master the Notes on the Neck

Why is the pentatonic scale used in the music of so many cultures worldwide? - Quora

Identifying I, IV and V chords

Blues harmony primer