A member of the music faculty gave her orchestra students the assignment of creating a derivative work or arrangement of a previously composed orchestral work now in the public domain. At the conclusion of the term, the faculty member advised the students that she would be using the best of the arrangements as examples for upcoming classes and would also make the arrangements available to middle school and high school music teachers for their use at school concerts. Some of the orchestra students protested, saying the faculty member did not have the right to freely use their works in that manner. The faculty member asserted that she could use their works in whatever manner she wanted because she created the assignment and their works were all based on music already in the public domain. Who is right?