The pentatonic scale is the most important scale to learn first for improvising. Other scales are useful too, but the pentatonic scale has only five notes in it, is easy to learn, and will not conflict with any other notes, as long as you're playing in the right key. In this lesson we'll learn the 3-position pentatonic climb, which is amazing for soloing because you can access so much of the fretboard all in one fluid scale pattern.