Hello. I think this is the answer your looking for...
Answer:
A, B, C, D, E, F, G.
Explanation:
The musical alphabet includes only 7 letters: A, B, C, D, E, F, G. On the staff, each line or space represents a different letter. The treble clef is also known as the G clef because it indicates that the second line from the bottom will be G.