1. Why is the 4th scale degree a graphic inversion of the 7th? 2. This structure avoids half step intervals by eliminating the fourth and seventh scale degrees . 3. The number of scale degrees and the distance between them together define a scale. 4. Horn fifths occur when the upper voice is on the first three scale degrees . 5. However, these tunes do sound Irish because of their inclusion of the sixth scale degree . 6. In harmonic minor scales, the augmented second occurs between the sixth and seventh scale degrees . 7. However, there is no requirement that musicians associate the solf�ge symbols with the scale degrees . 8. A major scale can be transformed to its parallel minor by sharpening those same scale degrees . 9. Some minor tunes, including Windham ( below ), are printed with a raised seventh scale degree . 10. Put another way, the key whose tonic is the dominant scale degree in the main key.