This month's Shortbook™ "100% Whole Tone" explores some of the improvisational possibilities and applications of the somewhat ignored and under appreciated Whole Tone Scale.
The Whole Tone Scale, as you may know, is a symmetrical, hexatonic (6 note) scale in which the intervallic distance between each of its inherent tones is that of a Major 2nd, or whole tone. Its layout is palindromic, meaning that its interval makeup is the same ascending as it is descending, regardless of its starting note, or "root".
Because of it's lack of certain basic intervals derived from the natural overtone series, such as the perfect 4th & 5th, the Whole Tone Scale has a somewhat ethereal quality, but could be seen as being melodically and harmonically limited or even boring to some degree.
However, it might also be compared to the two Knights on a chessboard - unique, quirky and extremely effective when used properly - especially in tandem with each other.