Sharps and flats change notes by:

A. Whole-Steps
B. Half-Step
C. Two-Steps

B . half step

Explanation:

a sharp symbol raises the pitch of the natural note by a half-step and a flat symbol lowers it by a half-step

hey

he was  an italian composer who wrote 39 operas, as well as some sacred music, songs, chamber music and piano pieces.

hope this and i wish you the best of luck! : )