The different notes of a scale (the 1st note, the 2nd note, the 3rd note and so on) are also called degrees of the scale: the 1st note is the 1st degree, the 2nd note is the 2nd degree, and so on. Therefore, we can say that in every major scale the semitones lie between the 3rd and 4th degrees, and between the 7th and 8th degrees. As shown in Figure 41:
Note that in a descending scale, we still count the degrees from low to high. Generally, we do not use the term "8th degree", because the 8th degree shares the same letter name as the 1st degree. Therefore, the highest note of the scale is also the 1st degree, as shown in Figure 42:
(The black symbol indicates how we should number the notes if the scale continues.)
Look at Figure 43. We have added the scale degree below each note of this melody: