The shapes, both major and minor ... deviated from the pentatonic pattern because I’m thinking about how I might embellish a G chord, rather than playing notes from a scale.

In this video, country guitar wizard Matheus ... choice here is the E major pentatonic scale (E-F#-G#-A-C#) and this can be combined with the E minor pentatonic scale (E-G-A-B-D) to create one ...

Major pentatonic scales are used a lot in folk music and Chinese music. They usually have a joyful feeling. They are also very good for solos and melodies played on the guitar.