I specially made an octave-guitar to develop my stuff. I call it Violinho which is a shorter way of saying "violãozinho". It fits better with the frequencies of bass and drums. The "jawari" sounding can be applied to the normal size guitar as well.
In the book Tao of Guitar there is this holistic vision and a spectrum of information through which anybody, specially those who are not initiated into music can have music in his/her style of life, entering the realm of the Divine Octave.
For more information about my teachings visit my website, for the moment both book and site only in Portuguese... see you!
:) www.arun.com.br