What chord begins the famous jazz composition “Girl from Ipanema”? A non  -chord is a chord that consists of 5 notes arranged in thirds. The name of the chord comes from the name of the interval between its upper and lower sounds – nona. The number of the chord also indicates this interval: 9. A nonchord is formed by adding a third from above to a seventh chord, or (which leads to a similar result) by adding a none to the root note of the same seventh chord. If the interval between the lower and upper sound is a big nona, then the non-chord is called big . If the interval between the lower and upper sound is a small non,…