Noun
a gapped scale with five notes; usually the fourth and seventh notes of the diatonic scale are omitted
Source: WordNetThe blues scale was the first thing I learned. It's just a pentatonic scale with a flat seventh and a few notes that sound cool when you bend them. And because people have amalgamated the blues into this rock-blues scale, if you're using it, you better sound like a real authentic blues player. Steve Vai
Levine points out that the V pentatonic scale works for all three chords of the standard II-V-I jazz progression. Source: Internet
McCoy Tyner perfected the use of the pentatonic scale in his solos, Gridley, Mark C. (2000: 270). Source: Internet
Superimposing the pentatonic scale over "Giant Steps" is not merely a matter of harmonic simplification, but also a sort of "Africanizing" of the piece, which provides an alternate approach for soloing. Source: Internet
The following example shows the V pentatonic scale over a II-V-I progression. Source: Internet