Neutral third quarter tone scale and in some traditional Arab music (see also Arab tone system). Undecimal neutral thirds appear in traditional Georgian music. Neutral thirds are also found in American folk music. Blue notes (a note found in country music, blues, and some rock music) on the third note of a scale can be seen as a variant of a neutral third with the tonic, as they fall in between a major third and a minor third. Similarly the blue note on the seventh note of the scale can be seen as a neutral third with the dominant. Two steps of
Rule of thirds (military) Rule of thirds (military) The rule of thirds is a rule of thumb used when planning for the deployment and usage of a military organisation, according to which one third of the total military forces involved should be available for operations, one third should be preparing for operations and the final third, having been on operations, should be recuperating. Ideally, units and individuals regularly will rotate through each of the three phases. Different nations and militaries will vary the rule of thirds according to their own financial and manpower situations. At times of financial constraint, rather than increasing the total