Pentatonic scales are five note scales that span the length of an octave. Major and minor scales, along with their respective modes, are all considered "heptatonic" or "seven note" scales. These scales also have five note subsets that are easier to learn and recognize. They are also more universally used across the globe. In this episode, we will discuss the major and minor pentatonic scales of the west and several others from the east, including the Hirojoshi, Mongolian, Iwato and Yo scales.