Question

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Explanation:

1. A standard major scale has 8 sequential pitch steps (octave).
2. By definition, a sharp symbol raises a note's pitch by one half-tone.
3. A major scale follows the step pattern W-W-H-W-W-W-H, which totals 5 whole (W) steps.
4. By definition, a flat symbol lowers a note's pitch by one half-tone.
5. C-sharp (half-step above C) and D-flat (half-step below D) are enharmonic equivalents (same pitch).
6. The interval between consecutive natural notes C and D is one full whole step.
7. D-flat and C-sharp are enharmonic equivalents, as stated in the prompt's example.
8. F-sharp (half-step above F) and G-flat (half-step below G) are enharmonic equivalents.

Answer:

1. There are eight steps in the major scale.
2. A sharp raises pitch by a half tone.
3. There are five whole steps on the major scale.
4. A flat lowers pitch by a half tone.
5. D-flat sounds the same as C-sharp.
6. Between C and D is a whole step.
7. (The note equivalent to D-flat is) C-sharp
8. (The note equivalent to F-sharp is) G-flat