An orchestra is defined as a large instrumental ensemble typical of classical music. An orchestra features bass, brass, strings, woodwinds, and percussions. In the list given above, the section that is not one of the four groups in the orchestral palette is the voices. The answer would be "voices".
Yes def. Just choose something that won't get you in trouble such as a more innocent picture of Angel?
The formula for a major scale would be W-W-H-W-W-W-H.
