Thai Music: Tuning

The Thai tuning system is originally derived from the Javanese which in turn was derived from Chinese music theory. The Thai system is based on seven pitches an equal distance apart from each other. This results in a scale which not only does not have a perfect fifth but also has no notes which will be the same as any in the western scales. In Thai music, the fourth and seventh pitches are usually avoided, a practice similar to the avoidance of the 3rd and 7th in China. They function as ornaments or passing tones.