A pentatonic scale is a five-note scale that is commonly used in rock and blues music. It is a shortened scale that is made up of notes based on its corresponding eight-note scale, and is a great option for beginners to learn because it has fewer notes to memorize. There are two main types of pentatonic scales: major and minor.

The major pentatonic scale is made up of the 1st, 2nd, 3rd, 5th, and 6th notes of a scale and has a bright, upbeat sound.

The minor pentatonic scale is made up of the 1st, flattened 3rd (b3), 4th, 5th, and flattened 7th (b7) notes of a scale and has a more somber sound.

The E minor pentatonic scale is a common choice for beginner guitarists because it only contains five notes and can be played across open strings and the second and third frets of the guitar.

Pentatonic scale is also a popular scale for more experienced guitarists to create dynamic solos. it can help build finger strength and dexterity, familiarize you with the notes on your fretboard, and provide a framework for creating melodies.