When should the flag be hoisted when sounding reveille?

The flag should be hoisted on the first note of reveille because this practice aligns with military tradition and ensures that the flag is at the peak as the music begins. This procedure underscores the respect and honor given to the national colors, signifying the start of the day and the importance of the flag in military customs. Sounding reveille is a formal action that marks the beginning of the duty day, and raising the flag simultaneously enhances the ceremonial aspect of the event. This coordination between the music and the flag display reinforces adherence to military protocols and instills discipline among service members.