D Pentatonic Minor scale on the guitar fretboard

The D Pentatonic Minor scale is made of D (the root), F (minor third), G (perfect fourth), A (perfect fifth) and C (minor seventh). The fretboard shows every one of them across the neck in standard tuning (E A D G B E), and plays them back so you can hear the scale.

The minor pentatonic scale has five notes, the root, a minor third, a fourth, a fifth and a minor seventh. It is a subset of the natural minor, so its shapes sit inside the larger scale on the neck. Add a flat five and you reach the blues scale.