This technique came to the forefront in the early 1960's, most recognizably in the playing of Miles Davis, as well as members of his "2nd Great Quintet" - namely saxophonist Wayne Shorter and pianist Herbie Hancock.
Even as Major and minor 2nds are inherent in any Major or minor scale, their use chromatically - with consistant directional change - is the key to this technique's effectiveness.
The simple interval scheme, per measure, is:
up a whole step / down a half-step / down a whole-step
up a half-step / up a whole-step / down a half-step / down a half-step
connecting to the following measure via a descending half-step, where it repeats in each succeeding measure.
The audio example is of the first eight bars only, and attempts to illustrate how these close melodic intervals can function within harmony.
B. Stern