When my dad (he's the pastor) was setting up the administrative structure of our church, he showed us a picture of a typical organization chart (you've all seen one; the CEO is at the top and the other positions branch out underneath that). He said that it was an example of how Jesus said that "The kings of the Gentiles exercise lordship over them" (Luke 22:25). To demonstrate his vision for our church, he turned the org chart upside down, so that the pastor was supporting the ministry leaders, who were supporting the rest of the ministers, who were supporting the lay members.
The leader of the Music Ministry should have a burden to support and nurture the other members and shepherd them in developing their ministry.